A dolphin has been spotted in the East River off East 96 Street in Manhattan.
Timothy Machnica from the New York State Department of Environmental Conservation told NBC 4 New York the mammal doesn't appear injured, but the agency will continue to observe it.
He said it's either a common dolphin or Atlantic bottlenose dolphin.
Machnica said the DEC will consult with a marine biologist at the Riverhead Foundation to determine if it should be guided out of the river.
In January, an injured dolphin died after becoming stranded in the Gowanus Canal in Brooklyn.
A necropsy determined the dolphin suffered from a series of chronic conditions, including stomach ulcers and kidney stones.