Two people have died after their light aircraft crashed and caught fire near Nutts Corner in Co Antrim, a few miles from Belfast International Airport.
The victims were the only people on board the plane which came down shortly before 12.30pm on Thursday.
Police have said they are not in a position to confirm their identities at this time.
PSNI Superintendent Emma Bond said: “The Air Accidents Investigation Branch will examine the scene to determine the cause of the crash.
“Cordons have been placed in the area surrounding the aircraft to maintain the integrity of the scene as the investigation continues.
“I would ask that the cordons are respected by all and directions from officers at the scene are heeded. We expect the scene to be held for some time as enquiries are carried out.”
Emergency services - including three fire crews, three ambulance crews, a rapid response paramedic, the air ambulance, and police – were called to the area.
A statement from the Northern Ireland Ambulance Service said: “No patients were taken from the scene.”
A statement from Belfast International said the aircraft was not flying to or from the airport.
“We are operating as normal following an incident involving a light aircraft at Loanends two or three miles from the airport,” a spokesperson said.
The Air Accident Investigation Branch has said an investigation is underway.
- Judith Hill reports from the scene