Guilty plea in pot lab blaze

A Los Angeles man has pleaded guilty to operating a marijuana lab that sparked a blaze at a six-story downtown building last summer.

Rafael Sarkisyan, 34, pleaded guilty Monday to manufacturing a controlled substance, recklessly causing a fire and animal cruelty.

Prosecutors say after firefighters doused the flames they discovered a marijuana growing and extraction lab. Police also found two dogs that apparently died in the fire.

No injuries were reported.

Sarkisyan will be sentenced Aug. 4 and is expected to receive six years and eight months in state prison.