Good Harbor Beach in Gloucester, Massachusetts was closed for swimming for a second day in a row after a reported shark sighting Friday morning.

The city in a social media post told beachgoers to "please stay out of the water until further notice and follow lifeguard instructions."

The water at Good Harbor was also closed for a few hours Thursday afternoon because of a shark sighting at nearby Long Beach. The harbormaster investigated but no sharks were seen around Good Harbor on Thursday and the beach was reopened at about 3 p.m.

The great white shark tracking app Sharktivity has logged a handful of reported shark sightings off the North Shore in the past 30 days. Far more have been seen around Cape Cod .

"We never have sharks at Good Harbor Beach," one Facebook user comment

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