An 11-year-old boy who was a passenger in a car crash that killed two other children Saturday on Route 40 died Sunday afternoon from injuries sustained in the crash.

Atlantic City Police Sgt. Monica McMenamin, spokeswoman for the police department, said the boy died at 3 p.m. at Cooper University Hospital in Camden. He was flown there following the accident and had been listed as critical Saturday night.

The boy, who has not been identified, is the third fatality of the accident in which five others were injured.

Police said a Hummer, which was driven by a city code-enforcement officer, and a Ford Taurus wagon collided on Route 40 in Chelsea Heights just over the Atlantic City border.

The Ford — which had three adults and five children inside — overturned and the passengers were trapped.

The other two fatalities were a 7-year-old girl from Williamstown and a 13-year-old boy from the Pomona section of Galloway Township. The code enforcement officer was not injured in the crash.

The three adults and the other two living children were also taken to area hospitals for medical attention.

A 9-year-old boy and a 5-year-old girl were also flown to Cooper Saturday. They both remain hospitalized, but their conditions are unknown.

Contact Caitlin Dineen: