A shark killed a diver off the coast of Western Australia on Saturday, the country's fourth fatal shark attack this year.

Government department says man was in the water around Michaelmas Island, near Albany, when he was bitten by a suspected 4.5-metre shark

A diver in his thirties sustained critical injuries in a serious shark attack off Michaelmas Island, Western Australia. Learn more about the incident.

The man was fishing when he was bitten by a shark, police say.