A catastrophic explosion struck a 20-story residential building in New York City early Wednesday, triggering a partial collapse and prompting an immediate emergency response. The incident occurred at 205 Alexander Ave in Mott Haven, the Bronx, with firefighters and specialized teams working to assess the damage.

Emergency crews confirmed a gaping hole in the structure, with debris scattered across the street below. While the exact cause of the blast remains under investigation, officials are exploring the possibility of a gas explosion. Con Edison was deployed to shut off gas lines, and first responders used K-9 units, drones, and rescue teams to search for potential hazards.

No injuries have been reported at this time, though the situation remains volatile. Authorities urged residents to avoid the area as investigations continue. Early reports suggested an internal incinerator shaft may have collapsed, contributing to the structural failure. Footage from the scene showed dust lingering in the air and firefighters operating on the building’s roof.

The New York Fire Department confirmed the incident as a “major response,” with ongoing efforts to ensure safety. Updates are expected as the investigation progresses.