Officials said the town's beaches will remain closed to swimmers for at least 24 hours.
Mr Booth said the attack victim and his friend were boogie-boarding when the attack happened. "15ft wide. I saw a tail and a lot of thrashing", Joe Booth said. The man's friend had to drag him to shore.
"I saw a worst nightmare unfold here", Booth said. "This has turned into Amity Island real quick out here", he admitted to WBUR. The patient is being transported to Cape Cod Hospital via ambulance.
The man, who has not been named, was rushed to Cape Cod Hospital in Hyannis, where he was later pronounced dead, though the extent of his injuries are not known.
The last shark attack deal was in 1936 when a 16-year-old was bitten off Mattapoisett.
On 15 August, the state saw its first attack since 2012 when a NY man was severely injured off Truro, also on Cape Cod.
A man in his 20s has died after being injured in a suspected shark attack in the MA in the United States. Hurley says state police and the Cape Cod District Attorney's office are handling the investigation. Great white sharks, apex predators, inhabit the waters off the Cape.
On Saturday, with sunny skies and warm temperatures, Newcomb Hollow Beach was busy, even though summer season was over and lifeguards were not on watch.
The attack occurred on Saturday near Newcomb Hollow Beach on Cape Cod.
According to off-duty lifeguard Adriana Picariello, the man had injuries to his lower extremities and no pulse while he was being tended to on the beach.
Reinhart said she hoped to discuss the incident with fellow Select Board members before saying anything further. He freed himself by punching the shark in the gills, he told the Boston Globe.
"Perhaps now specific federal, state and local officials tasked with responsibility for such matters, as well as the Atlantic White Shark Conservancy in Chatham, will take this issue much more seriously than they have in the recent past", Beaty said in the statement.