UPDATE: Trigg and Scarborough beaches have been reopened after being closed by life savers this morning.

Trigg and Scarborough beaches were closed this morning after the Surf Life Saving WA’s Westpac Rescue Helicopter spotted several tiger sharks within 150m of the shore.

A 2.5m tiger shark swimming to Scarborough and 3m tiger shark at south Trigg, both 600m offshore, were the first seen.

Two tiger sharks – about 3.5m and 4m – were then seen about 150m offshore about 200m south of south Trigg carpark.

Those sharks were heading north.

Surf Life Saving WA reported that the South West Helicopter spotted a 3m shark, species unknown, 2m offshore at the north end of Meelup Point, tracking south. Lifeguards closed the beach.

A junior life saving competition at Scarborough Beach was cancelled because of the shark sightings.

Life savers and an ambulance also treated a patient with a suspected cobbler sting at City Beach around 10am.