Earlier this month the Kennewick Fire Department said they're seeking the public's help in solving a mystery: 15 fires in the 240 median between Edison Street and the Blue Bridge in the last 30 days! It's no accident!

If you know exactly where someone is going to set a fire, and they've been averaging about one a day in that place, how hard is it to catch?

That's the problem Kennewick's Fire Department is facing right now.

Someone lit 15 fires on the same stretch of 240 between July 25 and Aug. 11.

They know they've got an arson on their hands, but they don't know if the person is throwing incendiaries from their vehicle, or lighting by hand.

Everyone be on the lookout and call Crime Stoppers at 1-800-222-8477 if you see anything suspicious.