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Marijuana growing operation found during NorCal warehouse fire

A massive marijuana-growing operation was discovered while firefighters battled a warehouse fire in Oakland, Calif. on Saturday, May 19, 2012.

May 20, 2012 12:00:00 AM PDT
As firefighters worked to put out the flames on the second floor on Saturday, they found an extensive marijuana grow operation on the floor below.

Police said there were about 500 plants. Officials said a nearby business uses the building to store restaurant supplies and during the fire, cans or tanks were exploding and being thrown into the air.

There were no reports of injuries.

The cause of the fire remains unknown.