Two structural support beams on the 21st floor of a 37-story under-construction building in Manhattan started buckling Tuesday morning, triggering evacuations, street closures and a large emergency response, officials say.

The FDNY said it got a call around 8 a.m. about bricks falling from the building at 235 East 42nd Street, between Second and Third avenues. The NYPD says it got a 911 call about the incident less than 15 minutes later.

When cops got to the scene, the NYPD says officers were told that construction workers on the 21st floor of the 37-story commercial building saw the columns beginning to collapse.

@nbcnewyork Two structural support beams on the 21st floor of a 37-story under-construction building in Manhattan started buckling Tuesday morning, triggering evacuations, street closures, and a large emergency response, officials say. The FDNY said it got a call around 8 a.m. about bricks falling from the building at 235 East 42nd Street, between Second and Third avenues. The NYPD says it got a 911 call about the incident less than 15 minutes later. #nyc #manhattan ♬ original sound – NBC New York

It wasn’t clear how many workers were in the building at the time. An evacuation was ordered out of caution.

No injuries were reported, according to police. Pedestrian and vehicular traffic was closed on East 42nd between Second and Third avenues to assist the response. City traffic cameras showed a major response.

Neighboring buildings were also evacuated as a precaution.

The building, formerly home to Pfizer’s global headquarters, is being converted into a 1,500-unit luxury rental complex. The Department of Buildings says it has an active permit for construction.

.@FDNY Activity: Expect traffic delays & emergency personnel near East 42nd Street & 2nd Avenue, Manhattan. Use alternate routes.

— NYCEM – Notify NYC (@NotifyNYC) July 7, 2026

The agency says it has inspectors on site. Both it and the NYPD describe their investigations as ongoing.

The FDNY is expected to hold a press conference later Tuesday. NBC New York will stream it live in the player above when it starts.