A fatal shark attack at Sorrento Beach in Perth’s northern suburbs has led to the closure of a large section of coastline as authorities continue responding to the incident and monitoring nearby waters.

The 63-year-old man was swimming with a friend at Sorrento Beach on Friday morning when he was attacked by a shark. Emergency services received reports of the incident at about 10:15am local time. Witnesses reported seeing blood in the water and emergency crews quickly began searching the area by sea and air. Police later confirmed that the swimmer had died as a result of the attack.

The attack occurred close to shore at one of Perth’s popular swimming locations. According to reports, the man had been swimming with a friend, who managed to return to the beach. Witnesses described seeing a large amount of blood in the water and police, water patrol vessels and helicopters were deployed following the incident.

The victim was initially reported missing from the water while emergency services searched the area. Authorities later confirmed his death. His identity has not been publicly released in the reports available on Saturday.

Following the attack, authorities closed beaches along Perth’s northern coastline as a precaution. The City of Joondalup closure affected a large stretch of coastline, with beaches from areas around Marmion through to Iluka closed while authorities assessed the situation. The closure was scheduled for reassessment around midday on Saturday.

Reports said a shark estimated to be several metres long had been seen in the area before or around the time of the attack. Authorities continued monitoring the waters while investigating what happened. The Department of Primary Industries and Regional Development is involved in the response, while police and other emergency agencies continued operations around the beach.

The incident has also renewed attention on shark-safety measures around Perth beaches. Sorrento Beach previously had a shark barrier, but that barrier was removed in 2020. Western Australia uses several approaches to reduce risks, including shark tagging, detection systems, public alerts, patrols and barriers at selected beaches.

The fatal attack comes only days after another shark incident in Western Australia in which a surfer was seriously injured at Glenfield Beach near Geraldton. The two incidents occurring within the same week have increased concern among beach users as the warmer months approach.

Surf Life Saving WA had already restarted helicopter shark patrols on Perth beaches ahead of the summer season. Weekend patrols began earlier in September, with daily patrols scheduled to increase from September 26. Authorities continue to advise beachgoers to follow Shark Smart warnings and temporary beach closures.

The Sorrento Beach incident remains under investigation. Authorities are continuing to assess the area and determine appropriate measures before affected beaches are reopened.