Summer education programs on Nantucket were placed on lock down Tuesday.
The FBI informed Nantucket police about a potential threat yesterday morning that was made through a social media account by someone located on the Island.
Officers responded to several schools and summer camps, including the Boys and Girls Club.
Police said they had flagged three suspects, but it wasn't immediately clear if they are facing charges.
(Photo by Mark Wilson/Getty Images)
Photo: Mark Wilson / Getty Images News / Getty Images