New twist in Las Vegas 'alien' sighting as family claim Homeland Security installed surveillance cameras

The plot has thickened in the recent 'alien' sighting in Las Vegas, with police installing high-tech cameras outside the home where residents spotted the '10 feet' tall supposed extra-terrestrials.

Former police officer Doug Poppa was left with questions after surveillance cameras were installed at the Nevada home where 'aliens with large shiny eyes' were recently spotted.

As per the New York Post, the Homeland Security department of the Las Vegas Metro Police Department (LVMPD) installed the cameras in the wake of the bizarre incident.

Poppa revealed he is baffled at the move by the LVMPD, with the police officer-turned-podcaster taking to Twitter to share images of the surveillance cameras.

Poppa wrote on Twitter: "THE VIDEO CAMERA SURVEILLANCE SYSTEM WITH THE WIRELESS TRANSMISSION LINK THAT I RECORDED AT THE HOME ON MAY 19, MUST HAVE BEEN A MIRAGE OR A FIGMENT OF MY IMAGINATION IF THE LAS VEGAS METRO POLICE ARE TO BE BELIEVED.

"NICE INSTALL, TASS (TECHNICAL AND SURVEILLANCE SQUAD)."

The self-styled investigative reporter revealed the matriarch of the family informed him of the cameras install.

Poppa added the family had been told the cameras were there to protect them from rubberneckers who may come to check out the spot of the 'UFO sighting'.

"But I can tell you right now. Cops don’t come out and put up expensive video equipment up like that — and they certainly wouldn’t for someone calling in a report about a UFO," Poppa said, as per the Daily Mail.

Poppa admitted to being initially skeptical about the family's 'alien' sighting.

However, after investigating the case in recent weeks he did concede he finds the family's claims to be credible.

The story captured the attention of the world when police worn body-camera footage went viral.

The footage shows the suspected UFO soaring across the night's sky in a bright streak.

The footage captured the flying object at about 11:50pm on April 30, shortly after a member of the family at the home called 911.

"We just see in the corner of our eye something fall down from the sky, and it was with lights, and when it hit down there was like a big impact, and we felt like an energy? And then we hear like a lot of footsteps near us," the caller told the 911 dispatcher.

"And then – we have, like, big- a big equipment, and we see there’s a, there’s like an eight-foot person beside it and another one’s inside, and it has big eyes and it’s looking at us.

They added: "They’re very large. They’re like eight foot, nine foot, 10 foot. And they’re not human. One-hundred percent, they’re not human."

A LVMPD media spokesman rejected that a Homeland Security department existed in Vegas to the New York Post.

The LVMPD website clearly states they do indeed have one, which was pointed out to the spokesperson.

The department is run by Deputy Chief Sasha Larkin.

The spokesperson then advised the New York Post they are in the midst of preparing a statement about the surveillance cameras installed at the home.