Wild video shows a huge mob of masked, black-clad thieves storming a California jewelry store and making off with around $1 million in merchandise.

The mob of up to 30 crooks was caught on surveillance footage as they suddenly ran up to the store in broad daylight Monday in San Ramon, around 34 miles east of San Francisco — just the latest raid blamed on the same gang.

They used crowbars and pickaxes to smash the display cases and snatch jewelry — then shot their way out when a security door automatically tried to lock them inside. 5

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“When they went in, they basically took over the store. Basically taking whatever jewelry was available,” Lt. Mike Pistello from San Ramon PD told ABC 7 News .

“What ended up happening was, once the suspects went in, the door locked behind them,

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