Emergency services are currently at the scene of a light aircraft crash near Castle Howard in the Ryedale area.
North Yorkshire Police say they received a number of calls from members of the public at around 10.40am.
The aircraft crashed in fields between Castle Howard and the A64.
There are believed to be two casualties on board.
The Air Accident Investigation Branch have been informed.
Roads in the area have been closed to allow emergency services to deal with the incident and members of the public are advised to keep away from the area.