A 65-year-old man was killed when a car involved in an accident slammed into him in Brooklyn on Memorial Day, cops said.

Two vehicles crashed around 10:15 a.m. at West 1st Street and Avenue P in Gravesend, authorities said.

One of the cars involved then struck the pedestrian, police said.

The man, whose name has not been released pending family notification, was taken to Maimonides Medical Center, where he was pronounced dead. 

Both drivers remained on scene, and the crash is under investigation. 

Police did not immediately have information about the vehicles involved or their drivers.