San Bruno mall shooting: Woman stuck on BART train describes police search at 12th St. Station

OAKLAND, Calif. (KGO) -- A witness describes the scene as BART's 12th Street Station was temporarily shut down for a police search after shooting at Tanforan Ball in San Bruno.

She says it was a crowded train.

"We got to 12th street - The doors didn't open," she said.

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The operator announced there was police activity and that their train was being held until further notice.

The all of a sudden, "'all these police came down with their weapons drawn."

Watch the video posted above to hear the whole story.

Get the latest updates on the San Bruno mall shooting here.