For the second time this week, a beach off Martha's Vineyard was closed to swimming due to a great white shark sighting.
Edgartown Police confirmed that a shark was spotted at South Beach, and said officials have cleared the water and the beach is temporarily closed.
The same beach was also closed for a time on Tuesday due to a shark sighting.
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It's been a busy time for shark-related beach closures off Massachusetts, as Longnook Beach in Truro and Newcomb Hollow Beach in Wellfleet were both forced to close due to shark sightings earlier this week.
Swimmers at Misquamicut Beach in Westerly, Rhode Island, were also forced out of the water for a short time Friday morning after a fin was spotted. Marine biologists originally thought it might have been a Mako shark, but now believe it was just a sunfish.
And a shark was seen off Goose Rocks Beach in Kennebunkport, Maine, on Thursday, according to police.
There have already been more than 150 great white shark sightings off New England this summer, according to the Atlantic White Shark Conservancy's Sharktivity app. But those sightings don't equal the actual number of sharks, as the same shark can be spotted multiple times.