A great white shark was spotted off Wells Beach on Monday.
The shark was seen about 200 yards off the beach, according to the Wells Fire Department.
The fire department urged beachgoers to stay safe and alert, reminding everyone that no lifeguards were on duty for Labor Day.
That comes after a spate of shark sightings up and down the Maine coast from Old Orchard Beach to Mount Desert Island, prompting officials to close some beaches to swimming. Another shark was spotted off Kennebunkport, near Bumpkin Island, on Friday.
Just over six years ago, Maine recorded its first fatal shark attack when a great white shark bit Julie Dimperio Holowach, 63, of New York City while she was swimming in Mackerel Cove off Bailey Island in Harpswell.
The Maine coast is at the northern edge of the great white shark’s range, but the fish are not commonly spotted off Maine.
Sightings are common from May to December, which peak from July to September.
As the Gulf of Maine continues to warm, some scientists have said such sightings could become more common in coming years, particularly as the sharks are attracted to the resurgent seal population off New England.