KANSAS CITY, Kan. -- A Kansas City, Kan., police sergeant saved a driver overnight when he stopped a car dragging a mattress on fire down Seventh Street.

Just before 3:30 a.m., the officer said he spotted the station wagon dragging the fiery mattress. He used his car's loud speaker to try to get the driver's attention, but the driver didn't initially stop.

The car finally stopped near North Seventh Street and Stewart Avenue, not long before the car became completely engulfed in fire.

Police said the fire started after the car drove over a mattress on the Lewis and Clark Viaduct, and the springs inside the mattress started sparking from friction with the pavement. That sparked an engine fire.

The driver was not injured and credited the police officer with saving his life.