A 10-mile-long ribbon of red tide has been spotted in the New York Harbor, according to the Associated Press.
Coast Guard officials are warning swimmers and boaters to stay away from the naturally occuring microorganisms, which can cause breathing problems and make shellfish unsafe to eat. The reddish brown algae stretches from the sitr of the Intrepid Sea, Air and Space Museum off Manhattan, to Hoffman Island, off Staten Island.
Another patch of reddish sheen was reported in Long Island Sound, about three miles south of Jones Beach Inlet. The Coast Guard says it should drift out to sea and disperse.