The Boston Fire Department reports firefighters responded at 4:42 a.m. to Blue Hill Avenue and Woodrow Street for what turned into a three-alarm fire that did an estimated $1 million damage to a commercial laundry and an auto-body shop.

The fire, which apparently started in the laundry, caused no injuries. Investigators are looking for the exact location and cause of the fire, the department says.

Firefighters used foam in addition to water: