BROOKLYN, NEW YORK — November 5, 2026 — Six people were killed and seven others injured, including three firefighters, after a massive three-alarm fire swept through a residential building in Brooklyn’s Sunset Park neighborhood early Thursday morning.
The tragedy prompted a major emergency response involving more than 230 firefighters and emergency medical personnel, as New York City Mayor Zohran Mamdani addressed the devastating loss of life and growing concerns about fire safety.
Fire Spreads Rapidly Through Residential Buildings
According to the New York City Fire Department (FDNY), emergency crews responded shortly before 1:40 a.m. to a fire at 653 58th Street, between Sixth and Seventh avenues in Sunset Park.
When firefighters arrived, flames had already engulfed the first and second floors of the two-story building.
The fire quickly intensified, spreading to an adjoining property and prompting authorities to raise the emergency response to a second alarm at 1:46 a.m. and a third alarm at 2:10 a.m.
A total of 231 fire and emergency medical personnel responded to the scene.
Firefighters battled intense flames, heavy smoke, and dangerous structural conditions while attempting to rescue residents trapped inside.
The fire was eventually brought under control after approximately three hours.
Six Victims Confirmed Dead
Four people were pronounced dead at the scene, while two others were transported to a hospital in critical condition and later died.
Seven additional people were injured, including four civilians and three firefighters.
The firefighters sustained minor injuries, while the civilian injuries ranged from minor to serious but non-life-threatening.
Authorities have not yet released the names or ages of the six victims.
Several residents from neighboring properties were displaced by the fire. The American Red Cross is assisting affected families with temporary accommodation and emergency support.
Mayor Zohran Mamdani Calls the Tragedy Devastating
New York City Mayor Zohran Mamdani addressed the tragedy Thursday morning, expressing sorrow over the deaths and recognizing the bravery of emergency responders.
“We are currently tracking this fire that claimed the lives of six New Yorkers. It is devastating,” Mamdani said.
The mayor praised firefighters who risk their lives responding to dangerous emergencies and emphasized the importance of preventing similar tragedies.
Speaking about fire safety, Mamdani noted that New York City has recorded more than 400 fires involving electric bicycles this year.
He said city officials are examining available measures to improve safety and protect residents from fires that can destroy both lives and livelihoods.
However, authorities have not established that an electric bicycle or its battery caused Thursday’s fire.
Lithium-Ion Batteries Found at the Scene
The FDNY confirmed that lithium-ion batteries were discovered inside the building, prompting the deployment of a hazardous materials response team.
Fire marshals are investigating whether the batteries played any role in starting or accelerating the blaze.
Officials emphasized that the cause of the fire remains undetermined.
Lithium-ion batteries are commonly used in electric bicycles, scooters, smartphones, and other rechargeable electronic devices.
When damaged, defective, or improperly charged, these batteries can overheat and ignite rapidly, sometimes creating fires that are difficult to control.
New York City has faced increasing concerns about battery-related fires, particularly those involving electric bicycles and scooters.
Second Deadly New York City Fire in Less Than a Week
Thursday’s tragedy follows another devastating residential fire in the Bronx less than a week earlier.
That fire claimed the lives of four family members, including a mother and her three children, after authorities identified a lithium-ion battery as the cause.
The two incidents have intensified concerns about residential fire safety and the risks posed by certain rechargeable battery systems.
However, investigators have not established a connection between the Bronx fire and Thursday’s incident in Brooklyn.
Investigation Continues
FDNY fire marshals remain responsible for determining the origin and cause of the Sunset Park fire.
Investigators are examining physical evidence, the building’s condition, and possible ignition sources.
Meanwhile, city officials and emergency agencies are assisting displaced residents and assessing damage to neighboring properties.
For the Sunset Park community, the tragedy represents a devastating loss.
As investigators work to establish what caused the fire, Mayor Mamdani’s response has renewed attention to the importance of fire prevention, emergency preparedness, and protecting New Yorkers from similar disasters.
Sources: Associated Press, ABC7 New York, FOX 5 New York, The Guardian, FDNY, Gothamist, November 5, 2026.
By NJ RADAR Team