A Cape Cod beach was temporarily closed to swimming Thursday after a shark was seen feeding just 70 feet from the shore.
The sighting was reported off Coast Guard Road in North Truro, where blood was seen on the water. A witnesses saw a seal, a fin and an "eruption of blood" in the water, according to the Sharktivity app.
As a result of the sighting, the Head of the Meadow beach was closed until 11:30 a.m.
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It was the second time in as many days the beach was temporarily closed to swimming due to sharks.
Researchers on Cape Cod launched a new study last month focused on the hunting and feeding habits of the region's great white sharks following last year's two attacks on humans, including the state's first fatal one in more than 80 years. They hope the work contributes critical information to the ongoing debate over how to keep Cape beachgoers safe.
One Massachusetts citizens group is calling for eliminating federal protections on seals, which have been blamed for drawing an increased number of great white sharks to the region in recent years.