(NewsNation) — Multiple people have been shot and a gunman is dead after New York City police responded to an active shooter at a Midtown Manhattan office building.

Police swarmed the 44-story high-rise at 345 Park Avenue near East 52 Street between Park and Lexington avenues at around 6:30 p.m. after getting a call about a shooting.

At least 4 people, including an off-duty police officer and three civilians, were shot, according to NewsNation affiliate WPIX. Police have yet to confirm the number of victims or their conditions.

The scene has been secured and the lone gunman is dead. The suspect was named as Shane Tamura of Nevada after cops found identification on his body, The Associated Press reported.

He shot himself as police closed in on him on the 33rd floor of the building, which houses financial firms and the National Football League, among other companies.

A New York police officer stands watch on 52nd Street outside a Manhattan office building where at least two people were shot, including a police officer, Monday, July 28, 2025, in New York. (AP Photo/Angelina Katsanis)
Pedestrians walk by police tape on the corner of Lexington Avenue and 53rd Street, near a Manhattan office building after a shooting, Monday, July 28, 2025, in New York. (AP Photo/Angelina Katsanis)
Police are seen swarming a building in Midtown Manhattan after reports of an active shooter in New York City. Photo: Brent Robinson
New York Police Department officers arrive on the corner of Lexington Avenue and 53rd Street, near a Manhattan office building after a shooting, Monday, July 28, 2025, in New York. (AP Photo/Angelina Katsanis)
Police work at the scene on the corner of Lexington Avenue and 53rd Street, near a Manhattan office building after a shooting, Monday, July 28, 2025, in New York. (AP Photo/Angelina Katsanis)
A New York police investigator exits her vehicle at the scene outside a Manhattan office building where two people were shot including a police officer, Monday, July 28, 2025, in New York. (AP Photo/Angelina Katsanis)
A New York police officer directs bystanders and members of the media outside a Manhattan office building where two people were shot, including a police officer, Monday, July 28, 2025, in New York. (AP Photo/Angelina Katsanis)