Heart-stopping footage has captured a great white shark turning on a fishing boat after the vessel had strayed into a feeding frenzy involving dozens of predators.

Dean Buttler was fishing for snapper in waters off the coast of Forster in New South Wales, Australia, when he came across more than a dozen sharks feeding on a whale carcass.

As he approached, one great white and a tiger shark that, he believed, weighed 500kg each veered off and headed directly towards his boat.

Video taken by Dean shows the creature opening its mouth before trying to take a chunk out of Dean’s propeller.

The two sharks then continue to stalk underneath Dean’s boat for several minutes.

The great white shark biting the boat
The great white shark biting the boat

“The only two bites I got all day were of those sharks eating my boat," Dean later told 9News.

“There’s a tooth mark in the propeller. You’d have to try hard to convince someone but that’s what it is.

“I’m glad I found it in the daylight, because you could easily hit that in the dark running — to come out of your boat and be surrounded by those guys would be pretty scary.

“I wasn't concerned, I was just happy to witness it — it was pretty cool."

One of the sharks circling the boat
One of the sharks circling the boat

It comes after a pair of divers came face-to-face with a great white while out fishing.

Meanwhile, a heart-stopping video emerged recently of a gigantic 14ft shark creeping up behind a diver.

Martin Graf, who shared the video on Facebook, told Daily Star Online that the tourist was looking at another shark when the larger one came up behind her.