A woman was fatally mowed down by a hit-and-run driver in Brooklyn on Tuesday morning, according to police.

The 54-year-old victim, who has not yet been identified, was crossing the street in the crosswalk at the intersection of West Second Street and Avenue Y in Gravesend around 8 a.m. when she was hit, police said.

Police said 911 calls initially indicated the runaway vehicle was a sanitation truck, but later described the vehicle as a dark van.

The victim was rushed to Coney Island Hospital, but she could not be saved.

Cops are still looking for the hit-and-run vehicle and its driver.