Apparent flare sightings have launched search efforts in the Connecticut River, the U.S.Coast Guard for the Long Island Sound said.
Reports of a flare signting came in at 8:55 p.m., the Coast Guard said.
A search is being conducted in the North Cove and Hamberg Cove area along the Connecticut River.
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DEEP, Essex Fire, Old Saybrook Fire, Coast Guard's New London station and Westbook Fire are all on the scene conducting a search.
There have been no reports of any distress boaters or missing person reports, the Coast Guard said.