The International Space Station appears to have captured footage of a UFO "with a propulsion system" accelerating over Earth on its live feed camera.

A video captured during a recent docking on the ISS showed the mysterious craft moving from right to left across the sky.

The object appeared to be round and white – similar to UFOs typically captured from witnesses on the ground.

A YouTuber known as MrMBB333 analysed the footage for his viewers, saying: "There was a recent docking at the international space station and if you look in the background you will see an unidentified object flying from right to left.

"The further left it gets you'll see it accelerates.

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