A warning is in place today after today after a shark knocked a foilboarder into the water at a Western Australia beach.

At about 5.45pm local time yesterday, a reported white shark bit a foilboard, causing the rider to fall into the water off the beach at Prevelly, in the Shire of Augusta Margaret River south of Perth.

The rider was not injured.

They were between "the Boat Ramp" surfing spot and "the Bombie" surfing spot when the encounter took place.

A shark warning is now in place for the area, with people urged to take extra caution.

Officers from the Department of Primary Industries and Regional Development are monitoring the situation.

See the full warning online here .

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