A MAJOR investigation has been launched after an 80-metre wind turbine worth almost half a million pounds collapsed on a mountainside in Northern Ireland.

No one was injured when the giant structure unexpectedly buckled and hit the ground on Friday, scattering debris across a wide area. It was one of eight on the Screggagh wind farm on Murphy mountain near Fintona in Co Tyrone.

The cause of the collapse is unclear as winds were light on Friday.