The Democratic National Committee is calling for Ivanka Trump to cut ties with a Chinese company that produces her brand's shoes.
The Associated Press is reporting one man has been arrested and two others are missing.
They were investigating working conditions at the company.
The three men were working with China Labor Watch, a New York based non-profit.
It was reportedly planning to publish a report next month alleging low pay and excessive overtime use by the company.
Hua Haifeng was arrested and charged with illegal surveillance. Labor Watch says it lost touch with the two other men, Li Zhao and Su Heng, last weekend.
The DNC asked for Ivanka Trump and the Trump administration to take action.
A spokesperson said, "Ivanka's brand should immediately cease its work with this supplier, and the Trump administration should reverse its current course and confront China on its human rights abuses."
Chinese Foreign Ministry spokesperson Hua Chunying says China is not aware of arrest activities or the investigation.
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Ivanka Trump in her new White House role
Ivanka Trump in her new White House role
WASHINGTON, DC - APRIL 04: Ivanka Trump delivers remarks during an event at the Eisenhower Executive Office Building April 4, 2017 in Washington, DC. U.S. President Donald Trump also delivered remarks and answered questions from the audience during a town hall event with CEO's on the American business climate. Also pictured are U.S. Commerce Secretary Wilbur Ross (L) and Reed Cordish (R), from the Office of American Innovation.
(Photo by Win McNamee/Getty Images)
Ivanka Trump joins her father U.S. President Donald Trump as he meets with women small business owners at the White House in Washington, U.S., March 27, 2017. REUTERS/Jonathan Ernst
U.S. Secretary of Education Betsy DeVos and Ivanka Trump speaks during a visit to the Smithsonian?s National Air and Space Museum in Washington, U.S., March 28, 2017. REUTERS/Joshua Roberts
Ivanka Trump (R) joins her father U.S. President Donald Trump as he holds a meeting with experts on addressing human trafficking at the White House in Washington, DC, U.S. February 23, 2017. REUTERS/Jonathan Ernst
Schaeffler CEO Klaus Rosenfeld , Germany's Chancellor Angela Merkel and Ivanka Trump participate in a roundtable with U.S. President Donald Trump and German and U.S. business leaders at the White House in Washington, U.S. March 17, 2017. REUTERS/Jonathan Ernst
Trump Senior Advisor Jared Kushner (L), his wife Ivanka Trump and with chief economic advisor Gary Cohn depart a news conference by U.S. President Donald Trump and King Abdullah of Jordan at the White House in Washington, U.S., April 5, 2017. REUTERS/Kevin Lamarque
Ivanka Trump and her husband White House Senior Advisor Jared Kushner attend a news conference with Germany's Chancellor Angela Merkel and U.S. President Donald Trump in the East Room of the White House in Washington, U.S., March 17, 2017. REUTERS/Jonathan Ernst
WASHINGTON, DC - FEBRUARY 10: (L to R) Senior adviser Jared Kushner and Ivanka Trump enter before U.S. President Donald Trump and Japanese Prime Minister Shinzo Abe hold a joint press conference at the White House on February 10, 2017 in Washington, DC. The two answered questions from American and Japanese press. (Photo by Mario Tama/Getty Images)
U.S. President Trump Addresses Joint Session of Congress - Washington, U.S. - 28/02/17 - Carryn Owens (L), widow of Senior Chief Petty Officer William "Ryan" Owens, reacts as Ivanka Trump, daughter of U.S. President Donald Trump, and her husband Jared Kushner (R), applaud after Owens was mentioned by President Trump. REUTERS/Kevin Lamarque
Ivanka Trump stands as U.S. President Donald Trump makes a toast during the Governor's Dinner in the State Dining Room at the White House in Washington, U.S., February 26, 2017. REUTERS/Joshua Roberts
Ivanka Trump looks at Canadian Prime Minister Justin Trudeau (L) during U.S. President Donald Trump's roundtable discussion on the advancement of women entrepreneurs and business leaders at the White House in Washington February 13, 2017. REUTERS/Kevin Lamarque
U.S. President Donald Trump points out his daughter Ivanka Trump (2nd R), flanked by Alveda King (2nd L) and U.S. Senator Tim Scott (R-SC) (R), during his remarks after visiting the National Museum of African American History and Culture on the National Mall in Washington, U.S., February 21, 2017. REUTERS/Jonathan Ernst
U.S. first lady Melania Trump and Ivanka Trump watch as U.S. President Donald Trump speaks in the Oval Office of the White House, in Washington, DC, U.S. February 28, 2017. REUTERS/Joshua Roberts
White House Senior Advisor Jared Kushner (L) and his wife Ivanka Trump talk with Sara Netanyahu (front L) as she arrives for a joint press conference between U.S. President Donald Trump and Israeli Prime Minister Benjamin Netanyahu, at the White House in Washington, U.S., February 15, 2017. REUTERS/Carlos Barria
Ivanka Trump watches as Japanese Prime Minister Shinzo Abe U.S. and President Donald Trump speak during their joint news conference at the White House in Washington, U.S., February 10, 2017. REUTERS/Joshua Roberts
WASHINGTON, DC - MARCH 27: Claudia Mirza, co-founder and chief executive officer of Akorbi, from right, Ivanka Trump, daughter of U.S. President Donald Trump, Jessica Johnson, president of Johnson Security Bureau Inc., and President Trump listen during a meeting with women small business owners in the Roosevelt Room of the White House on March 27, 2017 in Washington, D.C. Investors on Monday further unwound trades initiated in November resting on the idea that the election of Trump and a Republican Congress meant smooth passage of an agenda that featured business-friendly tax cuts and regulatory changes. (Photo by Andrew Harrer-Pool/Getty Images)
Senior Advisor to the President, Jared Kushner (L), walks with his wife Ivanka Trump to board Marine One at the White House in Washington, DC, on March 3, 2017.
The two are travelling with US President Donald Trump to Florida. / AFP PHOTO / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)