The CHP on Sunday arrested a man suspected of drunken driving after a crash in the rural hills west of Ukiah injured two.

The man was flown to Santa Rosa Memorial Hospital with serious injuries, and a woman passenger was taken by ambulance to Ukiah Valley Medical Center after the 6:11 a.m. crash, according to the Mendocino County CHP.

It happened on Running Springs Ranch Road, near Orr Springs Road.

Initial CHP reports indicated the car rolled off of one roadway and dropped about 300 feet to another roadway.

Further details weren't available Sunday.