The whale was spotted swimming in the East River between New York City and Brooklyn, beneath the Williamsburg Bridge.

An unusual whale sighting was caught on video Monday beneath the Williamsburg Bridge.

The humpback spotted splashing in the East River earlier this week has seemingly left the busy channel as quickly as it came — but not without leaving a whale-sized mark on the Big Apple.

Unfortunately, there were no visible identifying features captured by the lone image of Monday’s visitor, making it ...

A whale was spotted in the East River on Monday near the Brooklyn and Manhattan bridges, flashing its tail out of the water ...