Footage of a diver crashing into a manta ray during a dive off the coast of Palau.

In the video, captured in 2015, the diver can be heard screaming after the impact.

"The reason it crashed into the diver was because it can't see red light. All divers had white lights which attract plankton, which attracts the Manta," the filmer told Newsflare.

"But as it could not see the red light, it swam right into the diver," he added.

This video captures this event from 2 angles. Starting with the Manta ray hitting the diver (and the screams) and then swimming away. Second part is taken just before the Manta hits, but form a different angle. The reason it crashed into the diver was because it can't see red light. All divers had white lights which attracts plankton, which attracts the Manta. but as it could not see the red light, it swam right into the diver.