Boy in critical condition after being hit by train

ATLANTA -- Police said a 4-year-old boy has been hit by a train in northwest Atlanta and is in critical condition.

Atlanta Police Officer James Polite said the child ran out of his yard while chasing after his dog Thursday evening and was struck.

The CSX train engineer saw the boy and tried to stop, but was unable to in time. The locomotive was traveling about 30 mph when the crash occurred around 5 p.m.

Polite said the boy was thrown away from the tracks by the impact. He was taken to Children's Healthcare of Atlanta at Egleston.