JAKARTA, April 15 (UPI) — A snorkeler filming underwater footage in Indonesia captured video of an epic brawl between a pair of territorial octopuses.

Bjorn Svensson posted a video to YouTube showing what he discovered under the water while snorkeling off the coast of Asu Island.

The video shows an octopus outside of its den being attacked by a rival cephalopod.

Svensson said he sped up the video to increase the “action” of the battle he captured with his GoPro.