UPDATE PLUS VIDEO FOOTAGE: Tentacle UFO spotted night before carnage at Conisholme wind farm

TUESDAY 13.20pm - ENGINEERS from Ecotricity are working to establish how a 20m blade mysteriously fell off a turbine at Conisholme wind farm - but residents have their own conclusions.

It is believed the a blade fell off the 89m turbine and another was left badly bent on Sunday January 4.

Speculation has continued amongst residents in Conisholme and the surrounding villages with some saying they saw strange flashing tentacle shaped lights above the wind farm on the night before it happened.

Mr John Harrison, Saltfleetby described how on Saturday night, January 3 he looked out of his landing window to see a 'massive ball of light' with 'tentacles going right down to the ground' over Conisholme wind farm.

"It was huge" he said "At first I thought it must have been a hole where the moon was shining through but then I saw the tentacles – it looked just like an octopus.

"It was an incredible site; I have never seen anything like it before. I have no idea what it was, all I can say is what I saw".

And although many believe the incident is an isolated one, reports of damage to wind turbines appear to be more common than people think:

* April 2005: A 40m blade of a turbine on a wind farm in Berwickshire, Scotland suddenly shattered. The failure was blamed on strong winds and icy weather conditions.

* November 2006: The tip of the rotor blade of a turbine in Oldenburg, Germany was ripped off following a sudden gust of wind throwing it into a field 200m away.

* January 2007: A family narrowly avoided tragedy when a 16ft blade spun off a wind turbine and crashed through the roof of their home in Belfast.

* July 2008: A giant wind turbine between Sheffield and Rotherham was shut down using a controlled deconstruction and the blades fell to the ground after cracks in the blades appeared.

* December 2008: Shards of ice were catapulted from an 80m high turbine in Peterborough leaving residents fearing for their safety.

click here to see dramatic footage of a wind turbine being destroyed</a

CLICK HERE to email us your views. What do you think caused the damage? Have you seen a UFO?