A man has died after being mauled by a large shark on Sydney’s Northern Beaches.

Emergency services were called to Long Reef Beach just after 10am on Saturday to find the man critically injured.

Police said he was pulled from the water along with large sections of a surfboard.

“Officers attached to Northern Beaches Police Area Command have closed the beach and will liaise with experts from the Department of Primary Industries to determine the species of shark involved,” police said.

Beaches between Manly and Narrabeen have been closed until further notice.

A witness told the ABC they were heading to Shelly Beach at Manly when an alert sounded. 

“A megaphone announcement from a boat was warning ‘there has been a shark attack, please get out of the water for your own safety’,” he said.

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