The body of an unidentified man was found floating in the East River near a popular ferry landing during the Tuesday morning rush, cops said. 

The grim discovery was made around 7:50 a.m. in the major waterway, near the East 34th Street landing for the NYC Ferry, police said.

The man, believed to be in his 40s, was pronounced dead by responding EMS workers at the scene, authorities said. 

It was not immediately clear how long he’d been in the river, and his cause of death will be determined by the city medical examiner’s office. 

The ferry service’s weekday schedule shows that a ferry was slated to arrive at the landing a minute before a 911 call rolled in about the corpse.

Last week, the body of a missing 73-year-old woman who had been suffering from dementia was found floating in a pond at a Queens park, cops and sources said.