RELATED: Supervisor raises questions about massive fire in San Francisco's North Beach
The fire broke out at 659 Union Street around 7:30 p.m. and quickly escalated to four alarms.
VIDEO: Massive fire erupts at building in San Francisco's North Beach
VIDEO: Massive fire erupts at building in San Francisco's North Beach
Smoke and flames could be seen from across San Francisco Bay.
Firefighters said 15 people were displaced and there were no injuries reported.
The Red Cross was assisting the displaced residents.