Authorities say they're searching for at least one suspect after a motorist in the Phoenix area was hit by gunfire, another was wounded in a carjacking, and a patrol cruiser was struck by a bullet.

Maricopa County Sheriff's Det. Doug Matteson says the violence erupted late Tuesday night on and around Highway 87, in Phoenix's northeast suburbs.

He tells ABC15 (KNXV-TV) that a person in a vehicle opened fire on a passing car and struck a person inside. Then the suspect fled toward a nearby casino, and shot and wounded another person in a carjacking.

Matteson say that later a Department of Public Safety officer was chasing a vehicle and the officer's vehicle was hit by gunfire.

There was no immediate word of any arrests or of the seriousness of the two gunshot injuries.

He says that several roads in the area about 20 miles northeast of central Phoenix were shut down as authorities investigated multiple crime scenes.