BATON ROUGE, La. (AP) — A truck driver from Alabama has been charged with negligent homicide in a Louisiana wreck that killed a motorcyclist.

News outlets report 61-year-old Howard Lyons was arrested after the Tuesday crash, which authorities say was witnessed by Baton Rouge officers already on scene responding to another crash. Baton Rouge police say Lyons was driving a semitruck through the city when he rear-ended motorcyclist Ryan Carter, who fell off his bike and was run over.

An arrest report says police witnessed Carter yell something at Lyons before he was repeatedly rear-ended by Lyon’s truck. It says an officer yelled for Lyons to pull over and Lyons instead hit the motorcycle again, throwing Carter to the ground where he was run over by every tire on the passenger side of the truck.