A gas explosion sent fire racing through the top floors of a high-rise apartment building in New York City early Saturday, killing one person and injuring 14 others as temperatures plunged into the single digits overnight, authorities said.
Firefighters responded shortly before 12:30 a.m. to the 17-story building in the Bronx, where people were seen leaning out of windows calling for help as flames engulfed parts of the top floors, officials said.
Chief of Department John Esposito said firefighters were investigating reports of a gas odor on the 15th and 16th floors when the explosion occurred. He said there was major structural damage to about a dozen apartments and fires in 10 apartments on the 16th and 17th floors.
Authorities did not immediately release information on the person who died. Another person was critically injured, five had serious injuries and eight had minor injuries, officials said.
Officials said the building had been undergoing renovations, and work on the natural gas system had been completed and inspected. The cause of the explosion was under investigation. The building was formerly run by the New York City Housing Authority, but it has been under private management since 2024, city officials said.
“It’s an incredible tragedy. We’re sending all our thoughts to the families involved,” Leila Bozorg, deputy mayor for housing and planning, said at a morning news conference.
Mayor Zohran Mamdani said all utilities in the building were shut down, and all 148 apartments vacated. Officials set up a reception center for the displaced residents at a nearby school, and the American Red Cross was there to help provide housing and other needs.
“As you can imagine, this has been a deeply frightening and devastating morning for them,” Mamdani said at a news conference Saturday afternoon. “They are not alone. Our city will stand by them and do everything in our power to help them get back on their feet.”
The Red Cross said it had registered more than 100 households and 305 people, including 89 children, for emergency aid by early Saturday afternoon.
More than 200 fire and emergency crews worked the scene, according to the fire department. When the explosion occurred, some firefighters were trapped briefly in an elevator, officials said.
“There were injuries. It was a very, very difficult night on a very cold night, which caused even more difficulty,” Fire Commissioner Lillian Bonsignore said.
Around half a million New Yorkers live in aging buildings run by the city’s housing authority, known as NYCHA, which is the largest in the nation.
Many of the properties date back to the 1940s, 1950s and 1960s. In 2019, a federal monitor was appointed to address chronic problems like lead paint, mold and lack of heat. When he wrapped his five-year term in 2024, the monitor, Bart Schwartz, noted that the overarching issue for residents remained the “poor physical state of NYCHA’s buildings.”
In October, a massive brick chimney running 20 stories up the side of a housing authority apartment building in the Bronx collapsed after an explosion, sending tons of debris plummeting to the ground but amazingly not injuring anyone. Officials linked it to a natural gas boiler.
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This story has been updated to correct that the building is no longer run by the New York City Housing Authority and has been under private management since 2024.