Firefighter injured battling 3-alarm commercial building fire at San Leandro 'grow house'

SAN LEANDRO, Calif. (KGO) -- One firefighter is being treated at a hospital for minor injuries after a fire broke out in a commercial building in San Leandro.

The video in the player above is from a previous report.

The three-alarm fire started just after 10 p.m. Tuesday at 139th and Washington Avenue.

Investigators on the scene say this building is a so-called "grow house."

As of around 1:30 a.m. Wednesday, Alameda County Fire says that it has been controlled, but that firefighters would be on scene overnight.

Firefighters are asking people to stay away from the area as they continue to put out any hot spots.

Oakland fire also assisted in the efforts.