STOCKTON (CBS13) – Crews battled a three-alarm fire at a vacant motel near downtown Stockton Thursday morning.

The scene is along the 600 block of East Main Street.

Firefighters had a tough time getting in to battle the flames due to the windows being all boarded up.

An initial search of the building came up empty and no one is believed to have been injured.

Crews will remain on scene putting out hotspots throughout the early morning. It is unclear what caused the fire.