New York City police were investigating on Sunday an assault on a man who was pummeled by suspects shouting "ISIS, ISIS," leaving him with bruises on his head and face, authorities said.
The 43-year-old man was attacked while walking with a nine-year-old girl in the Bronx around 5:30 p.m. on Friday, according to the New York City Police Department.
He was punched several times in the head, knocked down and kicked, police said. The victim, whose name was not given, was treated for injuries at a hospital and released.
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Backlash faced by Muslims in US
New York police say assailants chanted 'ISIS' while beating man
Noreen Shakil, 9, smiles for a photo on the steps outsider her home in McKinney, Texas, on Friday, Dec. 11, 2015. Donald Trumps' remarks in the wake of the Dec. 2 shooting attack in San Bernardino, Calif., have stoked fears in Muslim children across the U.S. Their young minds, parents say, are confused about who the screaming man on TV is, what heâs saying about their faith and why thousands of their fellow Americans are cheering him on.(AP Photo/LM Otero)
Sarker Haque speaks about being attacked, during a news conference in New York, Thursday, Dec. 10, 2015. Haque, who is a Muslim, was attacked in his store and the police are investigating the incident as a hate crime. Advocacy groups believe there has been a spike in anti-Muslim incidents across the United States in recent weeks that can be linked to last week's mass shooting in California and the inflammatory rhetoric of Donald Trump and other Republican presidential candidates. And they say that Muslims are fearful the backlash could lead to further harassment and violence. (AP Photo/Seth Wenig)
Affan Modak, center, participates in the prayer with his father Salim Modak and the rest of the congregation at the All Dulles Area Muslim Society (ADAMS) Center in Sterling, Va., Friday, Dec. 18, 2015. The Council on American-Islamic Relations said 2015 is shaping up as the worst year ever for U.S. mosques, amid the backlash to the Islamic-extremist attacks in Paris and San Bernardino, Calif., and the intensifying anti-Muslim rhetoric from Donald Trump and others seeking the GOP presidential nomination. (AP Photo/Sait Serkan Gurbuz)
Egyptian-American community activist Rana Abdelhamid (L) demonstrates a move during a self-defense workshop designed for Muslim women in Washington, DC, March 4, 2016 in this handout photo provided by Rawan Elbaba. Picture taken March 4, 2016. REUTERS/Rawan Elbaba/Handout via Reuters ATTENTION EDITORS - FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS
Young Muslims protest U.S. Republican presidential candidate Donald Trump before being escorted out during a campaign rally in the Kansas Republican Caucus at the Century II Convention and Entertainment Center in Wichita, Kansas March 5, 2016. REUTERS/Dave Kaup TPX IMAGES OF THE DAY
A Muslim man prays while people shout slogans against U.S. Republican presidential candidate Donald Trump outside of his office in Manhattan, New York, December 20, 2015. REUTERS/Eduardo Munoz TPX IMAGES OF THE DAY
Janice Tufte of Seattle, a Muslim, participates in a pro-refugee protest organized by Americans for Refugees and Immigrants in Seattle, Washington November 28, 2015. REUTERS/Jason Redmond
NEW YORK, UNITED STATES - MARCH 09: A poster, reads 'Muslims! They invented coffee, the toothbrush, and algebra... Oh wait, sorry about the algebra. That's a year of class you'll never get back', is being displayed at a subway station under 77th Street, New York, NY, USA on March 09, 2016. Varied posters giving right information about Muslims and inform people against Islamophobia, prepared by Muslim comedians Negin Farsad and Dean Obeidallah, are being displayed at 144 subway stations of subway system in New York City within a project with 20,000 US Dollars cost. (Photo by Selcuk Acar/Anadolu Agency/Getty Images)
Graffiti in the shape of the Eiffel Tower inside a circle is painted on the side of the Islamic Center in Omaha, Neb., Tuesday, Nov. 17, 2015. A Muslim civil rights group wants the FBI and local police to investigate the vandalism as possible hate crime, that may be related to the Paris terror attacks. (AP Photo/Nati Harnik)
Graffiti in the shape of the Eiffel Tower inside a circle is painted on the left side of the Islamic Center in Omaha, Neb., Tuesday, Nov. 17, 2015. A Muslim civil rights group wants the FBI and local police to investigate the vandalism as possible hate crime, that may be related to the Paris terror attacks. (AP Photo/Nati Harnik)
The Islamic Society of St. Petersburg is shown Tuesday, Nov. 17, 2015, in St. Petersburg, Fla. The FBI has said that threats made against two Tampa Bay area mosques in the wake of the deadly attacks in France have been deemed not credible. The FBI says threatening phone messages were left last Friday night. (AP Photo/Chris O'Meara)
Samer Shalaby, member of the Islamic Center of Fredericksburg's board of trustees, shows plans of the organization's proposed new site during a public meeting at the Chancellor Community Center in Spotsylvania County , Va., Tuesday, Nov. 17, 2015. The meeting was cleared after after someone was heard saying they were threatening Islam. Muslims around the U.S. are facing backlash following the deadly attacks in Paris, including vandalism to mosques and Islamic centers, hate-filled phone and online messages and threats of violence. (Peter Cihelka/The Free Lance-Star via AP)
Sister Munira Salim Abdalla, chief administrator for the Islamic Ummah of Fredericksburg, asks a law enforcement official to intervene after hearing someone say they were threatening Islam during a heated public meeting regarding the possible construction of a new Islamic Center of Fredericksburg site in Spotsylvania County, Va., on Tuesday, Nov. 17, 2015. The meeting was cleared after the exchange of words. Muslims around the U.S. are facing backlash following the deadly attacks in Paris, including vandalism to mosques and Islamic centers, hate-filled phone and online messages and threats of violence. (Peter Cihelka/The Free Lance-Star via AP)
BROOKLYN, NEW YORK CITY, NEW YORK, UNITED STATES - 2016/01/18: Bay Ridge residents march along Ft Hamilton Parkway in support of the Muslim community. Hundreds of Brooklyn residents gathered in Bay Ridge at the site of an alleged bias attack for a march entitled 'Muslims Our Neighbors' in support of Bay Ridge's Islamic community. (Photo by Andy Katz/Pacific Press/LightRocket via Getty Images)
MIDTOWN MANHATTAN, NEW YORK, UNITED STATES - 2015/12/20: Several hundred demonstrators rallied outside of Trump Tower at East 56th Street and Fifth Avenue in Manhattan to condemn Republican Presidential candidate Donald Trump's position on immigration rights; after rallying for nearly two hours, demonstrators marched to Herald Square. (Photo by Albin Lohr-Jones/Pacific Press/LightRocket via Getty Images)
A group of Muslims pray before a rally in front of Trump Tower December 20, 2015 in New York. Republican presidential hopeful Donald Trump proposed a call for a ban on Muslims entering the United States. AFP PHOTO/KENA BETANCUR / AFP / KENA BETANCUR (Photo credit should read KENA BETANCUR/AFP/Getty Images)
WASHINGTON, DC - DECEMBER 10, 2015: Fire and hazmat crews arrive on the scene to investigate a suspicious letter delivered to the Council on American-Islamic Relations (CAIR) on December 10, 2015 in Washington, D.C. CAIR is the largest non-profit Muslim civil rights and advocacy organization in the United States, with offices two blocks from the U.S. Capitol building. (Photo by Allison Shelley/Getty Images)
MANHATTAN, NEW YORK CITY, NEW YORK, UNITED STATES - 2015/12/09: Hand-lettered Love Your Muslim Neighbor sign held aloft. City council speaker Melissa Mark-Viverito led an interfaith rally of political leaders and clergy on the steps of city hall to denounce Republican candidate Donald Trump's call to ban Muslim entry into the US. (Photo by Andy Katz/Pacific Press/LightRocket via Getty Images)
SAN BERNARDINO, Dec. 6, 2015-- Local Muslim residents attend a gathering to mourn victims who were killed in the recent deadly shooting incident in Islamic Community Center in Loma Linda, San Bernardino, California, United States, Dec. 6, 2015. (Xinhua/Yang Lei via Getty Images)
WASHINGTON, DC DECEMBER 2:
Ibrahim Hashi, a Muslim veteran of the United States military, is pictured in his American University dorm room, where a Marine Corp flag hangs on his living room wall, on Wednesday, December 2, 2015, in Washington, DC. Since leaving the Marines as a corporal in 2011, Hashi has heard more anti-Muslim rhetoric than ever.
(Photo by Jahi Chikwendiu/The Washington Post via Getty Images)
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He had been wearing a shalwar kameez, a traditional South Asian outfit featuring a long tunic, the New York Times reported.
The attack comes amid increasing anxiety in the United States over the threat posed by Islamic State, also known as ISIS, which has claimed responsibility for militant attacks around the world.
A Muslim couple inspired by the group killed 14 people on Dec. 2 in San Bernardino, California, just weeks after gunmen linked to Islamic State killed 130 people in Paris.
No one was immediately arrested in the New York assault, which is under investigation by the police department's Hate Crime Task Force, the agency said in a statement on Saturday.