UFO believers are accusing NASA of cutting the International Space Station's live feed to cover up a mysterious object entering the Earth's atmosphere.

The object was captured on the ISS feed on July 9 and uploaded to YouTube by avid online UFO hunter Streetcap1.

"Remember a UFO is an unidentified flying object," Streetcap1 wrote in the video's caption.

"This could well be a meteor or the like.

"What made it interesting was the camera cut off when the UFO seemed to stop."

Scott Waring of UFO Sightings Daily believes the object isn't a moon or a meteor.

"It may be the Chinese space station cargo ship, called Tiangong-1, or the other one Tangong-2," Mr Waring wrote on his blog.

Astronomers have recently raised alarm bells about the Tiangong-1 satellite , believing China has lost control of it.

Launched in 2011, the satellite should have been returned to earth in a controlled crash that would have seen it fall into the ocean.

The station will likely burn up on its way back to Earth and would return as molten metal rather than in its entirety.

It is likely the remains will fall into the ocean or unpopulated areas.

NASA have previously denied claims they cut off the ISS transmission to hide UFOs.