Three people were killed and three others injured in a pair of horrific one-car accidents on Long Island.

Former high-school football star Willie Davis, 24, of Bellport, died when pal Jasheem Trent’s car turned over on Montauk Highway in Brookhaven at 3:18 am.

In Southampton, two members of the Shinnecock reservation were killed when their car ran into a tree.

Jason King, 33, and Duane White, 22, died.