A three-story building in Brooklyn's Flatbush neighborhood collapsed into an adjacent excavation pit on Wednesday afternoon, killing eight people, including two children, New York City officials said^1,2,4.

Mayor Zohran Mamdani said at least 17 or 18 people were injured, among them firefighters, as about 250 first responders worked the site^1,4.

Buildings Commissioner Ahmed Tigani said the collapse came just after 4 p.m. while workers were excavating a neighboring lot where a one-story building had been demolished for a new project^1,2.

THE CITY identified the address as 1321 Flatbush Ave., with debris falling into a pit at 2625 Bedford Ave.².

Police on Thursday released names of the eight dead, ages 9 to 31, including Nicole Daniela Salvada Rodriguez, 9, and Kevin Santiago Reyes Gonzalez, 10².

ABC7 reported six people were pronounced dead at the scene and two died at a hospital³.

Mamdani said those killed and injured included people from Mexico, Colombia, Ecuador and Trinidad, and that two of the dead were construction workers^3,4.

WPRI, citing Nexstar reporting, said crews used saws, pickaxes and dogs through the night; FDNY Commissioner Lillian Bonsignore said the operation remained a rescue until larger debris could be cleared⁴.

THE CITY said the search ended late Thursday after firefighters concluded it was complete².

Mamdani said the Buildings Department had identified five companies working at the site associated with about 100 other locations and ordered inspections^2,4.

THE CITY reported two contractors it identified from records, Elite Concrete and N Tech Design of America; Tigani did not name the firms in public remarks².

The cause remained under investigation, officials said^1,4.

CBS News reported Friday that the Brooklyn district attorney's office opened a criminal investigation and that city records showed 98 open violations on the collapsed building⁵.

CBS said a contractor at the adjacent site, Townhouse Builders, had been issued a stop-work order earlier in 2026 that was later lifted in May after a violation was addressed⁵.

Council member Farah Louis said buildings do not simply collapse without systemic failures, citing the open violations and the earlier stop-work order⁵.

CBS separately reported that FDNY ended rescue operations after 3:30 p.m. Thursday and turned the site over to the Buildings Department and NYPD, with a full stop-work order in place⁷.

AP published a follow-up on city oversight and safety inspections; the desk did not copy that wire⁶. Colombia One placed the collapse at 1321 Flatbush Avenue into excavation at 2625 Bedford Avenue⁸.

PIX11 said police identified eight people killed on Flatbush Avenue, six adults and two children, with 18 injured including four firefighters²². WTNH reported the Fire Department said Thursday night there were no more victims to be found²⁶. ABC owned stations including ABC7 New York repeated the identifications, including two children ages 9 and 10²¹. The New York Times independently reported on video from inside the building; that wording is not reproduced here¹⁶.