A junior surfing competition set to be held at a South Mandurah beach this weekend has been moved to Perth after a 4.5-metre great white shark was sighted.
The large shark was spotted twice by members of the public at Avalon Beach on Friday afternoon, prompting the City of Mandurah to close the beach.
Round two of the WA Junior Surfing Titles will now be held at Trigg Beach.
"Surfing Western Australia's first and foremost priority is to provide our members and competitors with the safest and fairest conditions possible and we hope to see you all in attendance," a post on Surfing Western Australia's Facebook page said.
Public report 4.5m white shark sighted 12:00hrs 02/06 Avalon Beach, Mandurah, Cont— Surf Life Saving WA (@SLSWA) June 2, 2017
Cont - shark sighted , Second report of sighting. Shark reported to breach water. Avalon Beach, Mandurah. Reported 13:40hrs 02/06— Surf Life Saving WA (@SLSWA) June 2, 2017
Beach closed Burna Street to Avalon Beach RT @slswa: shark sighted, Avalon Beach, Mandurah. Reported 13:40hrs 02/06— City of Mandurah (@CityofMandurah) June 2, 2017