Mystery of the blue lights in night sky

fast” in the direction of Huddersfield town centre.

Dave added that his partner Stacey and multiple friends has also seen the lights.

Pictures were also posted showing them as seen from Mirfield and Dewsbury.

John Easton posted a picture of the lights seen from Staincliffe in Batley, suggesting it was “maybe aliens on the attack”.

Another person suggested the lights could have been from technology called Plain Line Pattern Recognition used by rail companies to check for damaged or missing components in train tracks, involving a train with a camera that emits light from the roof.

However, Network Rail appears to have solved the mystery.

The company released a statement yesterday claiming the lights were part of technology they’re using to test for faults in train lines.

Network Rail, which manages the country’s rail infrastructure, confirmed there was a ‘tamper’ in use on Monday night to carry out maintenance near Stalybridge on the edge of Greater Manchester.

The machine uses lasers to mark out a zone for the workforce.

A spokesperson said: “We can confirm this was not an unidentified flying object (UFO).

It was rather an identified non-flying object (INFO) – namely a railway ballast tamping machine, which uses lasers.”