Another UFO has been spotted hovering over the International Space Station, conspiracy theorists claim.

Footage allegedly taken from a Nasa camera shows a pink and white object soaring across space.It has reignited claims the ISS is being 'monitored by extra-terrestrials'.

The latest supposed sighting comes after another Nasa video, shot from the ISS in June, which showed mysterious lights 'leaving' Earth before the stream cut.

Watching the video, a small speck of light can be seen very faintly in the distance rising from the atmosphere, Mail Online reports.