The girl's name has not been released. She was brought to Yale-New Haven Hospital.
A spokeswoman for Mayor John DeStefano says the girl died early Thursday morning.
Investigators are asking anyone with information to call the city police department.
Girl dies in New Haven hit-and-run
NEW HAVEN
Police say two cars may have been racing when the girl was hit
Wednesday night on Whalley Avenue. Authorities continue to look for
the drivers.
