Two shark sightings have caused officials to issue a warning covering part of an island in southern Maine. The Harpswell Marine Resources & Harbor Management said in a July 16 Facebook post that the great white shark sightings over 48 hours east of Bailey Island caused the agency to implement shark notification flags at Cedar Beach.

Harpswell, a coastal town in southeastern Maine, was the site of Maine’s first deadly shark attack five years ago, which claimed the life of a seasonal resident.