More than 450 migrant parents may have been deported without their children, court filings show

The Trump administration said Monday that 463 parents separated fromm their children at the southern border were no longer in the United States, many of whom were possibly deported, according to new court filings.

Government officials sent the status update to U.S. District Judge Dana Sabraw just days before a Thursday deadline to reunite as many families as possible. The 463 cases mentioned in the report are listed as “under review,” and there are no further details about why the parents had left the country without their children. But the Trump administration revealed earlier this month that it had already deported at least 19 migrant parents without their young children.

A protester holds up a sign as mayors from U.S. cities are stopped from entering the children's tent encampment in Tornillo, Texas, on June 21.

About 2,500 kids were separated from their families as part of Trump’s zero tolerance immigration policy, meant to deter illegal immigration into the U.S. Many have been held in migrant detention centers and scattered across the country, even after the president signed an executive order in June meant to stop the separations.

Sabraw ordered the federal government to reunite families last month as part of a lawsuit brought by the American Civil Liberties Union, giving the administration a July 10 deadline to unify parents with their children under the age of 5 and a July 26 deadline for children older than 5. The judge also issued a temporary suspension on deportations of reunited families.

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Thousands nationwide protest family separations at U.S.-Mexico border
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Thousands nationwide protest family separations at U.S.-Mexico border
Demonstrators carrying signs, including one reading "Save America", march during the "Families Belong Together" rally in Boston, Massachusetts, U.S., June 30, 2018. REUTERS/Brian Snyder
Demonstrators carrying signs reading "Abolish ICE" and "I Really Do Care", referencing the coat recently worn by First Lady Melania Trump, march during the "Families Belong Together" rally in Boston, Massachusetts, U.S., June 30, 2018. REUTERS/Brian Snyder
Demonstrators gather on the Boston Common during the "Families Belong Together" rally in Boston, Massachusetts, U.S., June 30, 2018. REUTERS/Brian Snyder
U.S. Senator Elizabeth Warren (D-MA) speaks during the "Families Belong Together" rally in Boston, Massachusetts, U.S., June 30, 2018. REUTERS/Brian Snyder
U.S. Senator Elizabeth Warren (D-MA) speaks during the "Families Belong Together" rally in Boston, Massachusetts, U.S., June 30, 2018. REUTERS/Brian Snyder
NEW YORK, NY - JUNE 30: People take part during the nationwide 'Families Belong Together' march as they walk by the Brooklyn Bridge on June 30, 2018 in New York City. As thousands of migrant children remain separated from family, rallies are planned across the U.S. calling for them be reunited. (Photo by Kena Betancur/Getty Images)
NEW YORK, NY - JUNE 30: People take part during the nationwide 'Families Belong Together' march as they walk by the Brooklyn Bridge on June 30, 2018 in New York City. As thousands of migrant children remain separated from family, rallies are planned across the U.S. calling for them be reunited. (Photo by Kena Betancur/Getty Images)
NEW YORK, NY - JUNE 30: People take part during the nationwide 'Families Belong Together' march as they walk by the Brooklyn Bridge on June 30, 2018 in New York City. As thousands of migrant children remain separated from family, rallies are planned across the U.S. calling for them be reunited. (Photo by Kena Betancur/Getty Images)
NEW YORK, NY - JUNE 30: People take part during the nationwide 'Families Belong Together' march as they walk by the Brooklyn Bridge on June 30, 2018 in New York City. As thousands of migrant children remain separated from family, rallies are planned across the U.S. calling for them be reunited. (Photo by Kena Betancur/Getty Images)
NEW YORK, NY - JUNE 30: People take part during the nationwide 'Families Belong Together' march as they walk by the Brooklyn Bridge on June 30, 2018 in New York City. As thousands of migrant children remain separated from family, rallies are planned across the U.S. calling for them be reunited. (Photo by Kena Betancur/Getty Images)
NEW YORK, NY - JUNE 30: People take part during the nationwide 'Families Belong Together' march as they walk by the Brooklyn Bridge on June 30, 2018 in New York City. As thousands of migrant children remain separated from family, rallies are planned across the U.S. calling for them be reunited. (Photo by Kena Betancur/Getty Images)
NEW YORK, NY - JUNE 30: Thousands of people march in support of families separated at the U.S.-Mexico border on June 30, 2018 in New York, New York. Across the country marches under the banner 'Families Belong Together' are being held to demand that the Trump administration reunite thousands of immigrant children who have been separated from their families after crossing into the United States. (Photo by Spencer Platt/Getty Images)
NEW YORK, NY - JUNE 30: Thousands of people march in support of families separated at the U.S.-Mexico border on June 30, 2018 in New York, New York. Across the country marches under the banner 'Families Belong Together' are being held to demand that the Trump administration reunite thousands of immigrant children who have been separated from their families after crossing into the United States. (Photo by Spencer Platt/Getty Images)
NEW YORK, NY - JUNE 30: Thousands of people march in support of families separated at the U.S.-Mexico border on June 30, 2018 in New York, New York. Across the country marches under the banner 'Families Belong Together' are being held to demand that the Trump administration reunite thousands of immigrant children who have been separated from their families after crossing into the United States. (Photo by Spencer Platt/Getty Images)
NEW YORK, NY - JUNE 30: People take part during the nationwide 'Families Belong Together' march as they walk by the Brooklyn Bridge on June 30, 2018 in New York City. As thousands of migrant children remain separated from family, rallies are planned across the U.S. calling for them be reunited. (Photo by Kena Betancur/Getty Images)
NEW YORK, NY - JUNE 30: Thousands of people march in support of families separated at the U.S.-Mexico border on June 30, 2018 in New York, New York. Across the country marches under the banner 'Families Belong Together' are being held to demand that the Trump administration reunite thousands of immigrant children who have been separated from their families after crossing into the United States. (Photo by Spencer Platt/Getty Images)
NEW YORK, NY - JUNE 30: Thousands of people march in support of families separated at the U.S.-Mexico border on June 30, 2018 in New York, New York. Across the country marches under the banner 'Families Belong Together' are being held to demand that the Trump administration reunite thousands of immigrant children who have been separated from their families after crossing into the United States. (Photo by Spencer Platt/Getty Images)
NEW YORK, NY - JUNE 30: Thousands of people march in support of families separated at the U.S.-Mexico border on June 30, 2018 in New York, New York. Across the country marches under the banner 'Families Belong Together' are being held to demand that the Trump administration reunite thousands of immigrant children who have been separated from their families after crossing into the United States. (Photo by Spencer Platt/Getty Images)
NEW YORK, NY - JUNE 30: Thousands of people march in support of families separated at the U.S.-Mexico border on June 30, 2018 in New York, New York. Across the country marches under the banner 'Families Belong Together' are being held to demand that the Trump administration reunite thousands of immigrant children who have been separated from their families after crossing into the United States. (Photo by Spencer Platt/Getty Images)
NEW YORK, NY - JUNE 30: Thousands of people march in support of families separated at the U.S.-Mexico border on June 30, 2018 in New York, New York. Across the country marches under the banner 'Families Belong Together' are being held to demand that the Trump administration reunite thousands of immigrant children who have been separated from their families after crossing into the United States. (Photo by Spencer Platt/Getty Images)
NEW YORK, NY - JUNE 30: Thousands of people march in support of families separated at the U.S.-Mexico border on June 30, 2018 in New York, New York. Across the country marches under the banner 'Families Belong Together' are being held to demand that the Trump administration reunite thousands of immigrant children who have been separated from their families after crossing into the United States. (Photo by Spencer Platt/Getty Images)
NEW YORK, NY - JUNE 30: Thousands of people march in support of families separated at the U.S.-Mexico border on June 30, 2018 in New York, New York. Across the country marches under the banner 'Families Belong Together' are being held to demand that the Trump administration reunite thousands of immigrant children who have been separated from their families after crossing into the United States. (Photo by Spencer Platt/Getty Images)
NEW YORK, NY - JUNE 30: Thousands of people march in support of families separated at the U.S.-Mexico border on June 30, 2018 in New York, New York. Across the country marches under the banner 'Families Belong Together' are being held to demand that the Trump administration reunite thousands of immigrant children who have been separated from their families after crossing into the United States. (Photo by Spencer Platt/Getty Images)
LOS ANGELES, CA - JUNE 30: (EDITORS NOTE: Image contains profanity.) A Demonstrator participates in the Families Belong Together - Freedom For Immigrants March at Los Angeles City Hall on June 30, 2018 in Los Angeles, California. (Photo by Sarah Morris/Getty Images)
LOS ANGELES, CA - JUNE 30: Demonstrators participates in the Families Belong Together - Freedom For Immigrants March at Los Angeles City Hall on June 30, 2018 in Los Angeles, California. (Photo by Sarah Morris/Getty Images)
LOS ANGELES, CA - JUNE 30: Demonstrators participates in the Families Belong Together - Freedom For Immigrants March at Los Angeles City Hall on June 30, 2018 in Los Angeles, California. (Photo by Sarah Morris/Getty Images)
LOS ANGELES, CA - JUNE 30: Demonstrators participates in the Families Belong Together - Freedom For Immigrants March at Los Angeles City Hall on June 30, 2018 in Los Angeles, California. (Photo by Sarah Morris/Getty Images)
LOS ANGELES, CA - JUNE 30: A demonstrator participates in the Families Belong Together - Freedom For Immigrants March at Los Angeles City Hall on June 30, 2018 in Los Angeles, California. (Photo by Sarah Morris/Getty Images)
LOS ANGELES, CA - JUNE 30: A demonstrator participates in the Families Belong Together - Freedom For Immigrants March at Los Angeles City Hall on June 30, 2018 in Los Angeles, California. (Photo by Sarah Morris/Getty Images)
People hold placards during a 'Familes Belong Together' march and rally in Los Angeles, California on June 30, 2018 where a thousands turned out to decry the Trump administration's detention of families policy at the US Mexico border. - Thousands of demonstrators, baking in the heat and opposed to the US immigration policy, marched across the country Saturday, June 30, 2018 to protest the separation of families under President Donald Trump's hardline agenda. (Photo by Frederic J. BROWN / AFP) (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
People hold placards during a 'Familes Belong Together' march and rally in Los Angeles, California on June 30, 2018 where a thousands turned out to decry the Trump administration's detention of families policy at the US Mexico border. - Thousands of demonstrators, baking in the heat and opposed to the US immigration policy, marched across the country Saturday, June 30, 2018 to protest the separation of families under President Donald Trump's hardline agenda. (Photo by Frederic J. BROWN / AFP) (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
TOPSHOT - Demonstrators march against the separation of immigrant families, on June 30, 2018 in New York. - Demonstrations are being held across the US Saturday against President Donald Trump's hardline immigration policy. (Photo by EDUARDO MUNOZ ALVAREZ / AFP) (Photo credit should read EDUARDO MUNOZ ALVAREZ/AFP/Getty Images)
Anarchist elements move into the streets after the rally ends in order to draw more attention to the criminalization and dehumanization of immigrant communities during protests in Philadelphia, Pa on June 30, 2018. (Photo by Cory Clark/NurPhoto via Getty Images)
WASHINGTON,DC-JUNE30: Lauren Unterberger, 16, from Wilmington, DE, protests against family separation in Lafayette Square in Washington, DC, June 30, 2018. (Photo by Evelyn Hockstein/For The Washington Post via Getty Images)
Anarchist elements move into the streets after the rally ends in order to draw more attention to the criminalization and dehumanization of immigrant communities during protests in Philadelphia, Pa on June 30, 2018. (Photo by Cory Clark/NurPhoto via Getty Images)
WASHINGTON,DC-JUNE30: Sufia Bassett, 32, from Bethlehem, PA, originally from Equador, protests against family separation in Lafayette Square in Washington, DC, June 30, 2018. (Photo by Evelyn Hockstein/For The Washington Post via Getty Images)
Anarchist elements move into the streets after the rally ends in order to draw more attention to the criminalization and dehumanization of immigrant communities during protests in Philadelphia, Pa on June 30, 2018. (Photo by Cory Clark/NurPhoto via Getty Images)
Anarchist elements move into the streets after the rally ends in order to draw more attention to the criminalization and dehumanization of immigrant communities during protests in Philadelphia, Pa on June 30, 2018. (Photo by Cory Clark/NurPhoto via Getty Images)
Anarchist elements move into the streets after the rally ends in order to draw more attention to the criminalization and dehumanization of immigrant communities during protests in Philadelphia, Pa on June 30, 2018. (Photo by Cory Clark/NurPhoto via Getty Images)
Anarchist elements move into the streets after the rally ends in order to draw more attention to the criminalization and dehumanization of immigrant communities during protests in Philadelphia, Pa on June 30, 2018. (Photo by Cory Clark/NurPhoto via Getty Images)
Anarchist elements move into the streets after the rally ends in order to draw more attention to the criminalization and dehumanization of immigrant communities during protests in Philadelphia, Pa on June 30, 2018. (Photo by Cory Clark/NurPhoto via Getty Images)
Anarchist elements move into the streets after the rally ends in order to draw more attention to the criminalization and dehumanization of immigrant communities during protests in Philadelphia, Pa on June 30, 2018. (Photo by Cory Clark/NurPhoto via Getty Images)
Anarchist elements move into the streets after the rally ends in order to draw more attention to the criminalization and dehumanization of immigrant communities during protests in Philadelphia, Pa on June 30, 2018. (Photo by Cory Clark/NurPhoto via Getty Images)
Anarchist elements move into the streets after the rally ends in order to draw more attention to the criminalization and dehumanization of immigrant communities during protests in Philadelphia, Pa on June 30, 2018. (Photo by Cory Clark/NurPhoto via Getty Images)
Anarchist elements move into the streets after the rally ends in order to draw more attention to the criminalization and dehumanization of immigrant communities during protests in Philadelphia, Pa on June 30, 2018. (Photo by Cory Clark/NurPhoto via Getty Images)
WASHINGTON,DC-JUNE30: Lara Carlson, 50, from Maine, protests against family separation in Lafayette Square in Washington, DC, June 30, 2018. (Photo by Evelyn Hockstein/For The Washington Post via Getty Images)
WASHINGTON,DC-JUNE30: Lauren Unterberger, 16, from Wilmington, DE, protests against family separation in Lafayette Square in Washington, DC, June 30, 2018. (Photo by Evelyn Hockstein/For The Washington Post via Getty Images)
ANAHEIM, CA - JUNE 30: Protesters stand outside the James A. Musick Facility, a detention center that houses unauthorized immigrants, to protest President Trump's immigration policies and demand children be reunited with their families in Irvine on Saturday, June 30, 2018. (Photo by Kevin Sullivan/Orange County Register via Getty Images)
ANAHEIM, CA - JUNE 30: Protesters stand outside the James A. Musick Facility, a detention center that houses unauthorized immigrants, to protest President Trump's immigration policies and demand children be reunited with their families in Irvine on Saturday, June 30, 2018. (Photo by Kevin Sullivan/Orange County Register via Getty Images)
ANAHEIM, CA - JUNE 30: Thousands of people march from Portola High School in Irvine to the James A. Musick Facility, a detention center that houses unauthorized immigrants, to protest President Trump's immigration policies and demand children be reunited with their families on Saturday, June 30, 2018. (Photo by Kevin Sullivan/Orange County Register via Getty Images)
ANAHEIM, CA - JUNE 30: Marisa Esparza, 19, of Orange, walks with her sign outside the James A. Musick Facility, a detention center that houses unauthorized immigrants, to protest President Trump's immigration policies and demand children be reunited with their families in Irvine on Saturday, June 30, 2018. (Photo by Kevin Sullivan/Orange County Register via Getty Images)
ANAHEIM, CA - JUNE 30: Thousands of people march down Irvine Blvd. from Portola High School in Irvine to the James A. Musick Facility, a detention center that houses unauthorized immigrants, to protest President Trump's immigration policies and demand children be reunited with their families on Saturday, June 30, 2018. (Photo by Kevin Sullivan/Orange County Register via Getty Images)
ANAHEIM, CA - JUNE 30: Thousands of people march from Portola High School in Irvine to the James A. Musick Facility, a detention center that houses unauthorized immigrants, to protest President Trump's immigration policies and demand children be reunited with their families on Saturday, June 30, 2018. (Photo by Kevin Sullivan/Orange County Register via Getty Images)
ANAHEIM, CA - JUNE 30: Thousands of people march from Portola High School in Irvine to the James A. Musick Facility, a detention center that houses unauthorized immigrants, to protest President Trump's immigration policies and demand children be reunited with their families on Saturday, June 30, 2018. (Photo by Kevin Sullivan/Orange County Register via Getty Images)
ANAHEIM, CA - JUNE 30: People line the stadium at Portola High School during a rally to protest President Trump's immigration policies and demand children be reunited with their families, in Irvine on Saturday, June 30, 2018. (Photo by Kevin Sullivan/Orange County Register via Getty Images)
ANAHEIM, CA - JUNE 30: Thousands of people march from Portola High School in Irvine to the James A. Musick Facility, a detention center that houses unauthorized immigrants, to protest President Trump's immigration policies and demand children be reunited with their families on Saturday, June 30, 2018. (Photo by Kevin Sullivan/Orange County Register via Getty Images)
ANAHEIM, CA - JUNE 30: U.S. Representative Lou Correa applauds holocaust survivor Margaret Houffelaar, 91, of Laguna Woods, during a rally at Portola High School Saturday to protest President Trump's immigration policies and demand children be reunited with their families in Irvine on Saturday, June 30, 2018. (Photo by Kevin Sullivan/Orange County Register via Getty Images)
One-year-old Yara Pejan sits by a sign that refers to Trump's immigration policy separating children from their parents, during a rally in Laguna Beach on Saturday, June 30, 2018. (Photo by Mindy Schauer/Orange County Register via Getty Images)
ANAHEIM, CA - JUNE 30: People line the stadium at Portola High School during a rally to protest President Trump's immigration policies and demand children be reunited with their families, in Irvine on Saturday, June 30, 2018. (Photo by Kevin Sullivan/Orange County Register via Getty Images)
LOS ANGELES, CA - JUNE 30: A pro-Trump counter demonstrator holds a sign toward protesters decrying Trump administration immigration and refugee policies on June 30, 2018 in Los Angeles, California. Although President Trump was forced to reverse his policy of removing all children from their immigrant or asylum-seeking parents, little clarity appears to be seen as to how agencies can fulfill a court order to reunite thousands of children and parents detained far apart by multiple agencies. Yesterday, the Justice Department filed papers in a Los Angeles federal court to have families arrested for illegal border crossings incarcerated together indefinitely. The rally is one of more than 700 such protests being held throughout the nation. (Photo by David McNew/Getty Images)
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Officials said in their Monday filing that 879 parents had been reunited with the kids so far, double the amount since last Friday. An additional 538 have been cleared and are awaiting transportation.

But the number of potential deportations is much larger than those previously reported, worrying immigration advocates.

“If this number turns out to be as large as the report suggests, this is going to be a big issue for us,” Stephen Kang, an attorney for the ACLU, told The Washington Post. “We have a lot of questions.”

A hearing is scheduled for Tuesday that will likely provide more detail about the 463 parents no longer in the country.

  • This article originally appeared on HuffPost.
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