A $4,000 catalytic converter was reported stolen from a 2004 Toyota Sequoia at the Noroton Heights train station on June 11, according to Darien police.

The car was parked near the platform at 7:30 a.m. June 6 and when the owner returned at 7 p.m. he had trouble starting the car, police said.

The car was brought to an auto body shop, where the mechanic told him the car piece was stolen, police said.