Two men have died after a light aircraft crashed into a field near the M1 in Nottinghamshire, police said.
Officers said the men were believed to be the only people aboard the plane when it came down near Hucknall, close to Nottingham, at about 1.30pm today.
Motorists using the M1 described seeing the plane nose-dive prior to the crash near junction 26 of the motorway.
A Nottinghamshire Police spokeswoman said: "Two men have died after a plane, in which they were travelling, came down in a field.
"Inspectors from the Air Accidents Investigation Branch have been deployed to the scene to commence an investigation."
Eye-witness Craig Wing, from Clifton in Nottingham, saw the plane getting into difficulties as he drove northwards on the M1.
The motorist turned around at junction 27 of the motorway and drove back to the accident scene to try to assist those in the plane.
He told ITV's Central News: "We saw the aircraft obviously lose control then nose-dive.
"The pilot managed to... get the aircraft over the M1 into the field on the right-hand side.
"It wasn't a very nice view but my kids were very upset saying 'Dad we've got to go and help these people.'
"I rang the police straight away and pulled over. The police, the ambulance and the fire crew were all first-class."