10/08/2012 05:34 EDT | Updated 12/08/2012 05:12 EST

Boy, 4, dies in ATV accident

A four-year-old boy is dead after an all-terrain vehicle rolled over in Glade, B.C., between Castlegar and Nelson.

Mounties say a 33-year-old man was driving the ATV Monday afternoon with his step-son when the vehicle flipped, landing on top of them.

Both were wearing helmets.

The man suffered serious back injuries. The boy was pronounced dead at the scene.

The B.C. Coroners service is investigating.