'It just had a go at the motor': Great white shark circles boat

A WA fisherman and his friends have had a close encounter with a four-metre great white shark as it circled their boat.

Warren Brown was fishing two kilometres off Dunsborough, 254 kilometres south of Perth, on Thursday morning when a shark approached his boat, and even took aim at the motor.

Video footage shows the shark, believed to be four metres in length, circling the boat and swimming up towards the motor.

"Bugger me he just had a go at the motor," Ms Warren can be heard saying.

The shark could be seen just centimetres below the surface. Source: Sara Brown
The shark could be seen just centimetres below the surface. Source: Sara Brown

The shark swims away from the boat before coming back and getting extremely close to it. The shark can be seen just centimetres below the water's surface.

On Wednesday, the Department of Fisheries issued a shark warning around Yallingup after increased shark activity in the region.

In four days, between Sunday, April 15, and Wednesday, April 18, there have been six sightings of sharks.

Two surfers were attacked on Monday just hours apart. Both were lucky to make it out alive.

The shark quickly swam away after attempting to have a bite of the motor. Source: Sara Brown
The shark quickly swam away after attempting to have a bite of the motor. Source: Sara Brown

The first attack happened in the morning at Cobblestones off Gracetown. He was flown to Royal Perth Hospital for surgery.

Later in the day a second man was bitten by a shark off Lefthanders, receiving treatment for injuries to his leg.