SURF Life Saving have issued a warning for Mandurah foreshore visitors after a four-metre shark was spotted this afternoon.
The alert was issued after 1.30pm, when the a fisheries officer spotted the unknown species of shark.
The shark was 100m offshore, about halfway across the channel, swimming towards Kings Carnival.
This area is a popular spot for swimming and crabbing.
Cont – shark sighted 100m offshore , halfway across channel towards kings carnival Stingray Point, Mandurah. Reported 13:20hrs 12/01
— Surf Life Saving WA (@SLSWA) January 12, 2018