Arson Investigators: Fire That Wrecked 3 Cars An Accident

PIKESVILLE, Md. (WJZ) -- Arson investigators are ruling an explosion in Pikesville that destroyed three cars an accident.

According to our media partners, the Baltimore Sun, a plumber's leaky propane tank is to blame for the three cars catching fire this week.

Police say the plumber left the leaking tank in his car. When he opened the door, he smelled the gas and shut the door quickly. That's when the car exploded.

The plumber is still in the hospital; his condition is unknown.