Orchard Supply Hardware in Modesto was closed Saturday morning after a mechanical malfunction caused the business to fill with smoke.

Crews from the Modesto Fire Department responded to a fire alarm at the hardware store on Oakdale Road at about 5:30 a.m. and could see smoke inside. The business was not scheduled to open until 7 a.m. and no employees were yet on site so firefighters had to force entry, said Modesto Battalion Chief Randy Anderson.