A shark sighting closed Nauset Public Beach in Orleans for swimming Sunday morning.
The beach was closed from 10 a.m. until 11 a.m. Officials will monitor the area for other sightings.
A great white shark was spotted 15 yards off shore at the beach, according to the Atlantic White Shark Conservancy.
There have been other shark sightings at the beach this summer, which also caused officials to close it for swimming.
There have been more than 150 great white shark sightings in the waters off Cape Cod since June.