A 26-year-old Revere man died Saturday after being attacked by a shark at Newcomb Hollow Beach in Wellfleet.
It happened at about 12 p.m. Saturday at Newcomb Hollow Beach, Wellfleet police said on Facebook.
Procopio said in an e-mail to the Globe that the victim's family has been notified of his death, but he did not release the man's name.
Hurley said state police and the Cape Cod district attorney's office were handling the investigation and added: "Today is just keeping everyone out of water".
Great white sharks - one of the ocean's most feared predators - are found in waters off Cape Cod. Residents and guests should avoid swimming near seals, stay close to shore, avoid swimming in areas known for sharks and avoid dawn, dusk and night swimming, among other precautions, the chamber said.
Witness Joe Booth described a harrowing scene at the Wellfleet beach when the incident occurred.
The fatal attack happened at around midday on Saturday, Setember 15th at Newcomb Hollow Beaching in Wellfleet.
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At Newcomb Hollow Beach, the site of Saturday's incident, beach goers are greeted by a sign warning them to "Be Shark Smart", according to a local CBS affiliate.
The death came after increasing numbers of shark sightings and warnings about the danger of the predators off Cape Cod waters this summer, and followed an attack on August 15 that severely injured a 61-year-old NY man.
'The inshore waters off Wellfleet are a feeding ground for Great White Sharks.
However, shark sightings around the Cape have reportedly been more frequent this year, leading to several beach closings.
'It was like right out of that movie Jaws.
He said he saw the man kick aggressively kick something behind him and a flicker of a tail from the water. He's now recovering in a Boston hospital. "This has turned into Amity Island real quick out here". Lytton was airlifted to Tufts Medical Center in Boston, where he was treated for deep puncture wounds to his torso and leg.