SUNNYVALE (KRON) — A man allegedly assaulted a Caltrain conductor after he refused to pay his fare in Sunnyvale, according to a transit spokeswoman.

Around 1:30 p.m., transit police were called to the Lawrence station at 137 San Zeno Way where the alleged assault occurred on northbound Caltrain No. 151 heading, Caltrain spokeswoman Tasha Bartholomew said.

The conductor didn’t require medical attention, but the train was held for 30 minutes while police tried to locate the suspect and arrest him.

The suspect was expected to be booked into county jail, she said.

The train reached San Francisco 40 minutes behind schedule, she said.