power window motor keeps running

My power window motor keeps running and kept running even after I turned the car off. Had to pull the fuse to get it to stop running. The first time it started, it was the driver's side in the back, we unplugged the wires to it and stopped it until we could fix it, but then it did it again but on the front window of driver's side so we had no choice but to pull the fuse. Not sure what is causing this problem, sort of weird that 2 window motors started doing the same thing at the same time, but its possible. Please help...