Police are investigating a possible arson after finding a portable toilet engulfed in flames in downtown Pasco on Tuesday morning. The fire was found in Peanuts Park by witnesses who alerted a nearby officer. Pasco Police said the officer tried to put the flaming portable toilet out with a fire extinguisher. Fire fighters arrived moments later to extinguish the blaze. Officials said they managed to put the fire out before it could extend to a nearby building. Police joked on their Facebook page that the fire might have started because of something that someone ate. The Facebook post said, "This investigation is still ongoing but if you have any information about someone walking away from that area early Sunday morning, possibly with a very sore rear end, please let us know."