CAMPBELL — A Santa Cruz Metro bus caught fire Monday morning while traveling on northbound Highway 17 near Hamilton Avenue, according to the Santa Clara County Fire Department.

The fire, which was reported at 7:32 a.m., ignited in the engine compartment in the rear of the Highway 17 express bus, according to county fire spokeswoman Stephanie Stuehler.

The bus driver pulled over about one-quarter of a mile south of Hamilton Avenue, Stuehler said. The bus was evacuated and no injuries were reported.

The engine compartment was “totally involved” in flames when fire crews arrived. Firefighters stopped the flames from spreading into the passenger compartment, Stuehler aid. The fire was out at 8:08 a.m.

The cause of the fire is under investigation.