A major probe has begun following the collapse of a 328ft tall wind turbine on a mountainside in Northern Ireland.

The giant structure was worth approximately £2m. Its collapse did not injure anyone, although the debris were scattered across a wide area.

This is one of eight turbines on the Screggagh wind farm on Murphy mountain, near Fintona in Co Tyrone.

The reason for the collapse is yet to be ascertained. Winds were considered to be light when it buckled and collapsed, reports The Guardian.

"Those from Screggagh wind farm are currently investigating the circumstances that led to the collapse of the turbine."

It is believed that the rotor blades spun out of control and the sound could be heard up to seven miles away, according to locals.

Screggagh wind farm director Doreen Walker was quoted by The Independent as saying: "There were fortunately no injuries and no personnel on site at the time."

"We are currently investigating the circumstances that led to the collapse of the turbine at Screggagh wind farm.

"We are however satisfied that the site’s precautionary health and safety alert processes worked well with local emergency services in attendance within minutes of the incident taking place."

"A further statement will be made once the investigation has been completed and the reasons for the failure confirmed."

The wind turbines were supplied by Nordex UK.

The facility opened in 2011 with an investment of £26m. Each turbine had a nominal power generation capacity of 2.5MW.