BMW driver left the scene after a fatal cyclist crash in Flatlands.
Always There
Police said a BMW driver hit 40-year-old cyclist Mamadu Diallo at East 54th Street and Avenue I in Flatlands and left the scene; a friend told the Daily News it happened minutes before Diallo's shift ended, and Aug. 20, 2026, is inferred from the paper's Aug. 21 publication.
Reported by press, not yet linked to NYC police crash records. This may change when new official records become available or when matching details are reviewed.
Location under review.
What We Know
A BMW driver hit cyclist Mamadu Diallo at East 54th Street and Avenue I in Flatlands late Thursday and left the scene, police said. Reports place the collision around 11:49 to 11:50 p.m.; the Aug. 20, 2026 date is inferred from reports published Aug. 21. Accounts differed about who was turning. Reports said Diallo was taken to Brookdale Hospital, where he died.
The crash happened at a Flatlands intersection.
Police accounts placed the collision at East 54th Street and Avenue I in Flatlands, Brooklyn.
Accounts differ about who was turning.
The Daily News reported that police said Diallo was heading west on Avenue I and turning left onto East 54th Street when an eastbound BMW driver hit him. Streetsblog also reported that Diallo was turning onto East 54th Street. Gothamist gave a different account: the cyclist and BMW driver were traveling in opposite directions, and the driver was turning left onto East 54th Street when they collided.
Streetsblog reported the crash at 11:49 p.m.; the Daily News reported 11:50 p.m., and Gothamist said around 11:50 p.m. The reports' Thursday-night date is inferred as Aug. 20, 2026, from their Aug. 21 publication dates, rather than stated as a calendar date in those accounts.
The Daily News reported that EMS took Diallo to Brookdale University Hospital, where he could not be saved. Gothamist said he was pronounced dead at Brookdale Hospital.
Reports gave different descriptions of the BMW.
News12 described the BMW as a dark-colored sedan. The Daily News also called it dark-colored, while Gothamist described it as gray. The Daily News reported that Diallo was thrown into a parked Honda CRV; News12 said the parked car was unoccupied but did not identify its make or model.
Diallo's delivery work supported relatives in Guinea.
Diallo, 40, worked as a delivery driver. His friend Abdoulaye Barry told the Daily News that they had immigrated from Guinea about three years earlier and lived together in Canarsie. Barry said Diallo used his delivery earnings to support his parents and relatives in West Africa. The Daily News spelled his first name Mamadu; Streetsblog and News12 spelled it Mamadou.
Barry said the crash happened minutes before Diallo's shift ended. Remembering his friend, Barry told the Daily News, "He was always willing to help everybody. Anytime you need help, he was always there for you."
Police searched for the driver and surveillance video.
The Daily News reported that the BMW driver remained at large Friday and police were canvassing the area for surveillance video. The newspaper also said police had not established whether the driver knew he had hit Diallo.