State Police are investigating the theft of an ATM in Bridgewater.  Police responded to the Mobil gas station on New Milford Road shortly before 1am yesterday and found the locked front door had been forced open.  Troopers then discovered an ATM machine inside the store had been stolen.  Surveillance camera footage captured the perpetrators driving off in an older model dark gray Hyundai Sonata.  Anyone with information is asked to call Troop A at 203-267-2200.