Shark sighting at Reid State Park prompts brief water closure for safety WPFOShark sighting closes swimming at Reid State Park in Georgetown WMTWReid State Park officials urge caution after great white shark sighting near shore newscentermaine.comShark sighting prompts alert at Mother’s Beach in Kennebunk, Maine Seacoastonline.comShould Mainers be concerned by shark sightings? The Portland Press Herald