A Santa Rosa High School student's finger was partially severed Monday during an automotive shop class, fire officials said.

An ambulance was called to the Mendocino Avenue campus at 2:48 p.m.

The 14-year-old boy was taking out a transmission when something slipped and his finger was smashed between the transmission and the car frame, Santa Rosa fire Battalion Chief Jack Piccinini said.

The boy's hand was free and he was holding the wound when fire paramedics and an ambulance arrived, Piccinini said.

The extent of the injury wasn't immediately clear, but the teen was talking and alert, Piccinini said.

He was taken to Santa Rosa Memorial Hospital.

Santa Rosa High School staff couldn't immediately be reached.