Swimmers at Salisbury Beach were being told earlier today to not wade out beyond their knees, but that has since been rescinded. They were also warned of the shark sighting when they came up to the entry gate. While some people decided to leave, others drove in to spend the day at the beach.
The river is tidal in the area where the shark was spotted, and so it's not uncommon for saltwater fish to be found in the mouth. A few years ago, a baluga whale swam as far up the river as Newburyport, which is about a mile upriver from the mouth. Seals have been known to swim 5 or more miles upriver, in pursuit of fish.
Reporters and photographers for The Daily News are on the scene, and more reports will be filed as they become available.