A hit-and-run driver killed a 55-year-old man crossing a Brooklyn street early Saturday, police said.
It was one of two fatal crashes to take place Saturday morning in the five boroughs, police said.
The victim was crossing Washington Ave. at Fulton St. in Clinton Hill about 12:20 a.m. when a burgundy-colored Ford Explorer heading west on Fulton St. rammed into him, cops said…