At least nine people have died in a fire during a club night near San Francisco, authorities say.
The fire started at 23:30 local time on Friday (07:30 GMT Saturday) in Oakland, police told the BBC.
The venue was hosting a concert by electronic group Golden Donna. The event’s Facebook page indicates a number of people are missing.
Local broadcasters said some 13 other people were missing. The KTVU network said about 50 people were inside.
The building housed artists in studios, it said. It did not appear to be a formal concert venue.
Videos posted on social media by the fire department showed a large fire burning through the roof of the building. Three fire engines were called out.