Watch: Octopus attacks spear fisherman

An amazing video has emerged of an octopus attacking a spear fisherman.

See also: Watch this giant Pacific octopus walk along the beach

See also: Can you spot the camouflaged octopus on the ocean floor?

The footage, captured off the coast of Crete, Greece, shows the animal surrounding the diver's mask moments after he caught it.

''I saw an octopus eating a fish so I took the shot. Then the octopus attacked me,'' the filmer later wrote online.