Check out this video
Captured by Donnie Griggs at Cape Lookout in North Carolina, US, the footage shows more than 100 sharks attacking a school of blue fish in ankle-deep water.
Dive-bombing seagulls add a measure of drama to the already chaotic scene.
YouTube user, Brian Recker, who uploaded the video said in his description:
"As seagulls and pelicans joined in on the meal, the men began to cast into the surf, catching fish without the use of bait. For more than five minutes, the sharks were observed swimming in and out of the surf, some of which became beached in the fury."
He also emphasised the fact that this was a rare occurrence and that the beaches in the area are in fact totally safe for swimming.