Residents of a New Jersey neighbourhood have found out that the sound of helicopters and explosions that kept them awake was a secret Air Force exercise.
Video taken from the backyard of a Totowa resident's house shows a Blackhawk helicopter hovering overhead while at the same time the community was rocked by piercing explosions at around 10pm.
In the clip caught on Michael Melograno's cellphone he says: 'I have never seen anything like this. There was a Blackhawk helicopter flying right over here.'
The Blackhawk helicopter in the sky above Totowa, New Jersey. Explosions terrified local peopleiPhone transfer software