PINOLE (CBS SF) — San Francisco Sheriff Vicki Hennessy is “very concerned” that a deputy’s service-issued firearm was stolen from their car last week in Pinole, a Sheriff’s Department spokeswoman said Thursday.

The theft happened around 7:30 a.m. on June 14 in a Pinole parking lot, according to sheriff’s spokeswoman Nancy Hayden Crowley.

READ MORE: Rain Showers Trigger Power Outages Across The Bay Area

The weapon was in backpack underneath the seat, inside the deputy’s personal parked car.

Pinole police arrested one person in connection with the burglary, Hayden Crowley said.

READ MORE: Dozens of Dogs, Cats Removed From Danville Home

Pinole police officials were not available for comment and it was not immediately clear if the gun was recovered.

According to Crowley, the theft is under investigation by the sheriff’s department.

MORE NEWS: Oakland Church Group Hosts Party to Preach Anti-Violence by Practicing Community

© Copyright 2018 CBS Broadcasting Inc. and Bay City News Service. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.