NAUSET BEACH (USA)- Officials have closed down Nauset Beach at Cape Cod after a confirmed sighting of a great white shark. The shark’s dorsal fin was seen about 150 yards off the beach on sunday morning.

Swimmers were asked to get out of the water, and surrounding towns and the Cape Cod National Seashore were notified. The shark was estimated to be between 12 feet and 13 feet long. The shark was seen toward southern end of protected swimming area and headed in the direction of Chatham.

Swimmers must be kept out of the water for an hour after a confirmed sighting unless there is another sighting.

Cape Cod, the location of the movie ‘Jaws’, has been visited more frequently by great whites in the recent years.