COLUMBIA, S.C. (AP) — A South Carolina Highway Patrol trooper who was caught on video ramming a suspect with his patrol car was indicted Tuesday on a federal civil rights charge, the U.S. Justice Department said.

Steve C. Garren was indicted by a federal grand jury in Greenville on a charge of willfully depriving a man of his constitutional right to be free from the use of unreasonable force by a police officer, authorities said. Garren is white; the suspect he rammed is black.

State and federal authorities began investigating the highway patrol in March after videos emerged that showed troopers using a racial epithet and ramming their cruisers into fleeing suspects.