Firefighters contained a fire to the roof of the Ferry Building within a half hour Monday morning, fire officials said.
San Francisco fire officials said the fire was reported at about 7:25 a.m. at the historic waterfront building along The Embarcadero.
No one was injured and the building was not evacuated, fire officials said.
The blaze appears to have started around the vent on the roof. Traffic along the Embarcadero and ferry service were not impacted.