Police say one of the people seen running from an arson fire in West Seattle was on fire.

Now investigators are looking for someone with burns who probably won't go to a hospital.

Police spokesman Mark Jamieson says the fire at a locksmith shop was set early Friday with an accelerant in a bottle. He says witnesses reported seeing at least two people run away and one was on fire.

Arson detectives are investigating.

Fire Department Lt. Harold Webb says the fire was reported about 3:30 a.m. Firefighters quickly extinguished the fire at Puget Sound Lock and Key.