Washington, June 29 (IANS): Mysterious footage reportedly depicting three UFOs racing by our Earth has been a big hit on YouTube.

The 4-minute video titled "UFO Mysteries: UFOs, Angels Or Biological Creatures Seen Leaving The Earth?" was uploaded a week ago and has over 214,000 views.

The video, reportedly shot from the International Space Station (ISS), shows three unidentified flying objects (UFOs) shooting upward out of Earth's atmosphere, www.wnd.com reported.

But the moment the lights appear to blast off the planet, the video feed is cut by NASA, with a message displaying on screen stating: "Please stand by."

"The High Definition Earth Viewing experiment is either switching cameras, or we are experiencing a temporary loss of signal with the International Space Station." it says.

There are some sharp reactions to the video and NASA action. "BINGO! Caught them red-handed leaving Earth's orbit," wrote commenter Michael Clottey

NASA, however, has not provided any explanation for the curious lights.

"Of course, it's possible the YouTube video has been doctored, or the unexplained objects are simply a trick of the light," wrote Britain's Sunday Express.

"Critics claim the alleged UFO sightings on the live feed are simply down to NASA's poor camera and this latest sighting is likely to be a distorted view of the moon," the paper added.

"This is not the first time conspiracy theorists claim NASA has inadvertently captured extraterrestrial activity. Earlier in January this year, UFO hunter Toby Lundh spotted what he claimed was an UFO just outside the space station as he was monitoring the live feed on his laptop," another paper, The International Business Times, reported.