This is the moment a purported 'UFO' fell from the sky at speed before stopping suddenly, travelling along the surface of the sea and then vanishing.

The footage was captured on a drone by Augustine Lepe, who was flying his aerial vehicle above the South Pacific Ocean, about 12 miles from the north of La Serena, Chile.

Writing alongside the clip, which was later uploaded on YouTube, Augustine explained that he was filming the brown stain in the sea, which he says corresponds to algae.

To read more and view the video, click here.