(Portland, OR) -- An electric scooter exploded and caught fire in a Portland apartment complex on Tuesday. A resident heard an explosion and reported the fire. When firefighters arrived they found smoke in the hallways and a stairwell was filled with smoke. A sprinkler head was spraying water. A lithium-ion battery powered scooter had ignited on the stairwell landing. The fire didn't extend to the apartments and firefighters removed the scooter from the building. The say don't charge devices in stairways, only charge them when you're home, and if a battery changes shape or color stop using it.