A teenager in the Bronx said that federal immigration agents physically assaulted him, then left him bloody and bruised in a park after realizing that they had detained the wrong person.

Jeury Concepcion,19, told NBC New York he was standing in front of a barber shop on Wednesday afternoon when he was approached by multiple ICE agents who ordered him to stop, then forced him to the ground and handcuffed him.

Cellphone videos obtained by the outlet show an ICE agent running toward Concepcion with his gun drawn. Another video shows agents lifting the handcuffed teenager off the ground as blood dripped from his head. Agents then escorted Concepcion to the vehicle and left.

Concepcion said agents asked him for his ID and cellphone during the drive, and that’s when they realized they had made a mistake.

“He told me he’s sorry, that he [was] confusing me with somebody else and that it would never happen again, and that he don’t want me to think they did it,” Concepcion said. “And I told him I’m going to report them.”

The teenager said agents dropped him off at a park he was not familiar with. He was later reunited with his mother who took him to the hospital for treatment. Concepcion said he suffered a concussion as a result of his encounter with ICE agents and required stitches to his head. His family plans to file a complaint.

Earlier this year, Nurul Amin Shah Alam, 56, a nearly blind refugee from Myanmar, was found dead five days after U.S. Border Patrol agents dropped him off at a doughnut shop in Buffalo, N.Y., in the cold, miles away from his home, without care for his safety.