The Malbone Street wreck, also known as the Brighton Beach Line accident, was a rapid transit railroad accident that occurred on November 1, 1918, on the New York City Subway's BMT Brighton Line (now part of the BMT Franklin Avenue Line) in the community of Flatbush in Brooklyn. A speeding train derailed in the sharply curved tunnel beneath Willink Plaza, the intersection of Flatbush Avenue, Ocean Avenue, and Malbone Street (now known as Empire Boulevard). At least 93 people died, making it one of the deadliest train crashes in the history of the United States, as well as the deadliest in the history of the New York City Subway.