BBC News - PSNI helicopter crashes in the Mourne mountains
Four people have been injured after a police helicopter crashed in the Mourne mountains.
The accident happened close to the scene of last weekend's fatal helicopter crash.
The helicopter was in the area on Thursday as part of a police clearance operation in connection with Saturday's crash. It had just taken off when it overturned.
The four people on board were able to walk away from the wreckage.
Emergency services are at the scene in Hilltown, County Down.
They are not believed to be seriously injured but are being taken to hospital for treatment.
Local DUP MLA Jim Wells was in the area when the crash happened.
"The conditions in the Mournes are extremely bad," he said.
"It's misty, the cloud is down to 600ft and the rain is very heavy so I can understand how something like this could happen."
The Air Accident Investigation Branch has been informed. The helicopter was on lease to the PSNI.
On Saturday, three people were killed in a helicopter crash in the Mourne Mountains in an area known locally as Leitrim Lodge, between Hilltown and Rostrevor.
Charles Stisted, Ian Wooldridge and their pilot, who has not yet been named, died when the aircraft crashed.
The men were travelling back to England from County Tyrone, where they were part of a private shooting party at Baronscourt country estate.
Mr Stisted, 47, was chief executive of the Guards Polo Club at Windsor and a personal friend of the Prince of Wales.
Mr Wooldridge, from Windlesham, Surrey, was also a member of the Guards Polo Club.
Together with his brother Graham, he ran a £40m-a-year demolition and construction company.
Mr Wooldridge was a prominent figure in Dublin-based Harcourt Developments, the property company involved in the development of the Titanic Quarter in Belfast.