A California Highway Patrol officer rolled his vehicle several times while chasing a motorcycle Wednesday night in Madera.
The officer hurt his head in the crash but is expected to be okay.
The crash happened at Highway 99 and Avenue 20.
Officers say the motorcycle took a sudden turn onto an off-ramp and the CHP officer tried to follow, hit a patch of grass and lost control.
The black motorcycle the officer was chasing got away and the California Highway Patrol is asking for anyone with information about the chase and crash to call 559-675-1025.