A smoldering fire at a recycling center in Brisbane was extinguished early Wednesday morning, more than 24 hours after it started, according to San Francisco fire officials.
The fire at the Recology facility at 501 Tunnel Ave. was extinguished at 3:48 a.m., fire officials said. The cause of the fire has been declared “spontaneous combustion/accidental” per fire officials.
The fire started at about 2 a.m. Tuesday, sending a plume of smoke visible in the southern end of San Francisco, according to recycling center spokesman Robert Reed.
The smoke forced San Francisco Unified School District officials to send students home from Visitacion Valley Middle School, according to district officials. The Bay Area Air Quality Management District issued a warning about the smoke.
The recycling center is used to sort construction and demolition debris, primarily consisting of wood, sheet rock and scrap metal, Reed said. One pile of debris started smoking early Tuesday morning.
The metal structure was not at risk of catching on fire and the building is not used to store any aerosol containers, Reed said.
The San Mateo County Fire Department responded to the fire. At 1 p.m., San Francisco firefighters had taken over responsibility for the incident.