NYPD and Animal Rescue are on the scene, though it's unclear what they're doing to help the dolphin. Check back for updates.
UPDATE 1: The cloudy water around the dolphin appears to be blood from its fin, witnesses say. :(
UPDATE 2: Authorities told the "New York Times" they can't attempt a rescue until high tide this evening.
Jessica Testa is a national reporter for BuzzFeed News and is based in New York.
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