Perth beach re-opens after shark sighting

A Perth beach has been re-opened following the sighting of a great white shark close to shore.

Surf Life Saving WA (SLSWA) tweeted on Tuesday afternoon that a four-metre shark was sighted by a surfer 50m off shore at Trigg beach.

A helicopter was sent to investigate, but did not see a shark so the beach was re-opened, SLSWA said.