Perth: A professional surfing event off Western Australia was suspended on Monday after a shark attack.

The Margaret River Pro event, part of the World Surf Tour, was put on hold for an hour after the attack at Gracetown, about 15 kilometres away.

A man in his 30s, who was surfing at Cobblestones Beach near Gracetown, was bitten on the leg but managed to body surf to shore where bystanders used a rope from his surfboard to apply a tourniquet. The victim was still conscious when flown to Royal Perth Hospital by air ambulance. A 4m shark was later spotted nearby.

After assessing the situation, organisers of the Margaret River Pro decided to resume the event with additional safety measures in place. Organisers added more drones and jet skis to ensure the safety of competitors.