Boston police say an 8-year-old girl has died and a 12-year-old boy is injured after being struck by a car late Saturday.

The children were struck at about 11 p.m. on West Selden Street in the Mattapan neighborhood.

Police said the girl was pronounced dead at a hospital. The boy was hospitalized with serious but not life-threatening injuries.

Witnesses said the car hit a parked car and struck a fence, and the driver tried to flee on foot.

A 45-year-old Boston man has been arrested and is expected to appear in court on Monday.