The clip, said to have been filmed in the Icarus crater area, appears to show a number of pulsating bright lights moving at speed over the surface of the moon.

Launched on May 18, 1969, Apollo 10 was the fourth manned mission to the moon, and the second to orbit it.

The video was first uploaded by YouTube channel We Came in Peace, which focuses on perceived anomalies in official NASA pictures and videos of the lunar missions.

In a promotional blurb for the video, the channel said: "This video is part of series of original videos from Apollo Missions to the Moon containing footage of unidentified flying objects (UFO)."

Describing the footage, it added: "A UFO materialises above the southern skies of lunar farside.

"It initially moves away from the camera almost to horizon then decides to turn around and head straight to a crater near Icarus - located very close to the camera recording the UFO.