At least nine people have been killed 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, according to reports from local police.

Electronic group Golden Donna were playing at the venue, and the event's Facebook page indicates a number of people are missing.

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Local reports have said some 13 other people were missing, while it has been reported that around 50 people were inside.

Videos posted on social media by the fire department showed a  fire burning through the building's roof. 

Three fire engines were called out.