SAN FRANCISCO (CBS SF) — A suspicious package found on a Muni bus forced Marina residents to shelter in place for more than an hour Thursday afternoon, authorities said.

Police received a report of a suspicious item on a bus in the area of Marina Boulevard and Laguna Street at 12:11 p.m., according to Officer Robert Rueca.

The bus was evacuated and vehicular and pedestrian traffic was closed off on Marina Boulevard between Laguna and Buchanan streets.

Residents and businesses in the area, including the nearby Safeway grocery store, were asked to shelter in place while police investigated.

Muni spokesman Paul Rose said the 43-Masonic route was impacted by the incident.

A 1:57 p.m. the package was deemed to be harmless and the shelter-in-place was lifted. No injuries were reported.