LENOX HILL, Manhattan — A woman was struck and killed by a yellow cab Wednesday, police say.

It happened near East 68th Street and Lexington Avenue just after 5 a.m.

The woman was a passenger inside a yellow cab. She opened the back door and fell onto the street as the cab approached East 68th street.

That's when a second yellow cab ran her over and kept going, according to police sources.

The victim was transported to the hospital where she was pronounced dead, police said.

Jonathan McKenzie, a witness who works at the nearby Hunter College, said he was walking in the area when he saw a cab "peeling off" and the woman "mangled up," lying on the roadway.

A Toyota Camry used as a yellow cab fled the scene, according to detectives.

Lexington Avenue was closed between East 69th and East 68th streets during the investigation.

Submit tips to police by calling Crime Stoppers at 1-800-577-TIPS (8477), visiting http://www.nypdcrimestoppers.com, or texting 274637 (CRIMES) then entering TIP577. Spanish-speaking callers are asked to dial 1-888-57-PISTA (74782).