12/03/2017 10:21 AM AEDT | Updated 12/03/2017 11:02 AM AEDT

Fishing Tragedy: Angler Dies After Being Washed Off Rocks In Sydney

The man was swept off rocks at Manly.

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The 23-year-old could not be revived.

A rock fisherman has died and two other anglers are in hospital after being swept into the ocean on Sydney's northern beaches on Sunday morning.

The three men were pulled from the water onto a police vessel but one of them, a 23-year-old man, could not be revived, police say.

Police say the victim was not wearing a life jacket when he was swept off rocks into the water at Blue Fish Point at Manly just after 6.30am local time.

The two other men, aged 37 and 31, jumped into the water wearing life jackets to assist the victim. They were rushed to St Vincent's Hospital at Darlinghurst suffering hypothermia and are in a stable condition.

Meanwhile, another angler was rescued after falling from rocks at Cape Solander near Kurnell in Sydney about 7am.

The man was not wearing a life jacket but was able to stay afloat after another angler threw him an 'angel' ring flotation device.

Marine Area Command officers assisted by a diver came to the 20-year-old's aid and he was taken to St George Hospital.