The two legislators thanked the Wellfleet Fire and Police departments, the town's beach staff and bystanders "whose preparation and quick action provided help as soon as possible".
A man in his 20s has died after being injured in a suspected shark attack in the MA in the United States.
It has been 82 years since a shark attack claimed a life in MA.
At the site of Saturday's attack, people are greeted by a sign warning them to "Be Shark Smart" and advising swimmers to not swim near seals, close to the shore or in waist deep water.
Hayley Williamson, a Cape Cod resident and former lifeguard who was on the beach at the time, was in disbelief after the man was rushed into an ambulance.
Before the August bite in Truro, the most recent shark bite on the Cape occurred in 2017, according to the Global Shark Attack File, when a great white nibbled Cleveland Bigelow's boogie board in the waters off of Marconi Beach in Wellfleet.
On 15 August, the state saw its first attack since 2012 when a NY man was severely injured off Truro, also on Cape Cod.
"I was that guy on the beach screaming, 'Shark, shark!' " Booth said.
In August, a NY man was bitten by a shark at another Cape Cod beach but survived the encounter, according to media reports.
The National Park Service, which is responsible for that part of the Cape Cod National Seashore, tweeted that the attack took place about 300 yards south of the beach. Two signs at the top of the dune at Newcomb Hollow Beach alert visitors that the beach is closed to swimming, Saturday, Sept. 15, 2018, in Wellfleet, Mass.
"I saw a worst nightmare unfold here", Booth said. He described how the late victim kicked something behind him, before a tale emerged from the water.
He sustained severe injuries to his legs and is still recovering in hospital.
Sightings of great white sharks have soared this year in Cape Cod, where the suspected shark attack happened.
Barnstable county commissioner Ron Beaty said he had warned something like this could happen.
Troy, of Boston's Dorchester neighborhood, was visiting an uncle and was swimming about 50 feet offshore when the shark attacked.