Eyewitness: Helicopter 'flying extremely low' before crash
7 January 2014 Last updated at 23:55 GMT
Four people are believed to have been killed when a US air force (USAF) helicopter crashed, police have said.
The aircraft came down in Cley-next-the-Sea in north Norfolk, off the east coast of England. Emergency services are at the scene with a 1,200ft (400m) area cordoned off.
The helicopter is an HH-60G Pave Hawk, based at RAF Lakenheath in Suffolk, a spokesman for the USAF confirmed.
Brian Egan, who lives near to the crash site, told the BBC's Clive Myrie what he saw.