Swimmers were ordered out of the water at a Duxbury beach Monday after a large shark was spotted just before 1 p.m.
The Duxbury Fire Department reported that a state police helicopter spotted the shark in the area of the Powder Point Bridge.
State police later confirmed the shark was a great white. The state police helicopter continued to monitor the shark as it headed south into deeper water.
The beach was closed to swimmers for about two hours Monday afternoon.
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