CAMPERS have said their hair stood on end when they saw a 'pulsating purple light' hovering over Oxfordshire last night.

The blue or violet glow seemed to pass silently above the clouds near Chinnor from about 9.30pm for some 10 minutes.

Toby May, who took the picture below, was camping at the Bella Vista campsite just south of Chinnor.

Oxford Mail:

He said he walked out into a field to use the shower block when he and another lady saw the eerie light.

He said: "I was a bit startled by it.

"There was dense cloud cover, and it looked like this purple orb was flashing behind it.

"It sends my hair on end just talking about it, and one lady felt uneasy afterwards."

Oxford Mail:

Mr May said there was no noise to accompany the apparation and no visible light coming from the ground.

He added: "It was just moving slowly and pulsating; flashing."

Another Oxford Mail reader, Carina Marrison, saw what looked like the same light when she was walking her dog in Denham in Buckinghamshire about 11.20pm, and took the picture below.

She said: "It is same strange blue glow and in the space of 2-3 mins it had move closer towards central London."

Oxford Mail:

The lights were uncannily similar to blue lights seen flashing in the skies over southern Oxfordshire back in April, which it turned out were being beamed into the clouds by a special Network Rail train which monitors overhead wires.

Now the company has confirmed that its measurement train was indeed out in action last night on the line between Banbury and London.

The blue light, which can be seen in action in this video below, is used to check the overhead wires are in working order.