3 dead, including off-duty police officer, in Midtown Manhattan shooting: Sources

A tragic incident unfolded in Midtown Manhattan as a man armed with a long gun shot and killed three people, including an off-duty police officer working security in an office building located at 345 Park Ave. The suspect, after apparently barricading himself on the 33rd floor, was found dead from what is believed to be a self-inflicted gunshot wound.

Surveillance footage captured the suspect outside the building armed with a long gun, according to sources. The motive behind the shooting is currently under investigation, as stated by FBI Deputy Director Dan Bongino.

The office building, which houses the headquarters for the investment company Blackstone and the National Football League, is currently on lockdown. It remains unclear if any of the companies in the building were connected to the shooting.

Employees inside 345 Park Ave. have been informed that the threat has been resolved, but they are advised to continue sheltering in place and only leave the building with a police escort. New York City Mayor Eric Adams warned residents to avoid the area due to the active shooter investigation, and the New York City Police Department urged people to steer clear of East 52nd Street between Park Avenue and Lexington Avenue.

FBI New York Field Office personnel and agents have responded to provide support at the active crime scene. New York Gov. Kathy Hochul has been briefed on the situation.

This is a developing story, and updates will be provided as more information becomes available.