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Do you believe in aliens? You wouldn't be alone if you did – and one police helicopter may have caught evidence of a UFO right here in the South West.

The video above shows footage shot by a police helicopter over the Bristol Channel.

The thermal cameras caught sight of a UFO while the police helicopter was flying 1,000ft over the Bristol Channel at around 9.30pm on Saturday, September 24.

The invisible object, which could not be seen with the normal eye, was captured by South Wales Police.

With none of the crew being able to come up with an explanation of what it was, the team tweeted it out with an alien emoji stating: "Any suggestion??"

poll loading What do you think the mysterious object is? 0+ VOTES SO FAR An alien spacecraft A balloon A Chinese lantern An experimental weapon

Some have suggested it could be a balloon or a Chinese lantern, but police have ruled out both ideas because of the heat and movement.

The mystery craft was said to be flying against the winds at the time and was said to be undetected by air traffic control.

"It's difficult to judge the size but we filmed it for just over seven minutes," the police twitter account stated.

In February a woman claimed she captured proof of alien life just a few miles away from where the police helicopter was flying.

Fiona Powell was walking her children with friends along the sea front on Severn Beach when she took a photo of the view.

But on closer inspection, the corner of one of the photos contained what appeared to be a flying saucer.

The 41-year old said that before the incident she had been slightly dubious about the existence of extra-terrestrials, but that this close encounter was now giving her pause for thought.

Later that month, a Bristol star gazer believed he photographed a UFO. Caught on a Canon 650D camera with a 70-300mm telescopic lens, sky-watcher Louis Read thought he may have snapped images of an extraterrestrial mothership near Jupiter's moon, Europa.

The photographs were picked up by American UFO fanatics Secure Team 10, and turned in to a YouTube video which has been watched almost 250,000 times.

Chairman of the Cornwall Research Group David Gillham said new technology such as thermal and infrared cameras were leading to more spotting of UFOs than ever before.

He said there are hundreds in the South West area every year.

He said: "They theory is they (UFOs) are all around all the time but we can't see them. Infrared and thermal cameras allow us to see things that are working in a different light sphere.

"More people are posting their sightings on Facebook these days and there are a hell of lot on there."

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