A portion of a New York City high-rise apartment building collapsed Wednesday morning following “some type of explosion,” New York City Mayor Eric Adams said.

There have been no reports of injuries following the collapse in the Bronx borough’s Mott Haven neighborhood. Officials at the scene said the explosion was centered around the building’s boiler room.

“I was waking up, I walked to the window and as I walked away…. I heard a big explosion,” a resident in the area told FreedomNewsTV. “Once I walked back to the kitchen, that’s when I saw the whole side of the building was gone.”

Aerial images showed that a large, exterior section of the 20-story building had crumbled. Another witness added that, “The gas smell was really, really heavy,” in the aftermath of the collapse.

This image provided by the Fire Department of New York shows part of a high-rise apartment building that collapsed in New York City’s Bronx borough on Wednesday, Oct. 1, 2025.  (FDNY/AP)

“Con Edison Gas has shut gas utility to the impacted building,” New York City Emergency Management said.

Dozens of firefighters responded to the scene, where 40 apartment units were evacuated, FOX 5 NY also reported.

There were no reports of injuries following the partial building collapse in the Bronx. (AP/Eduardo Munoz Alvarez)

“Residents in F & G apartments are being evacuated out of an abundance of caution and will be cared for at a nearby community center,” Daughtry said.