A two-year-old boy has been killed after a truck struck him in Yellowknife Saturday. 

Sana'a Michael Christensen-Blondin was playing in the yard of a welding company in the Kam Lake area when the incident happened, says his mother Jocelyn Christensen.

The welding company is owned by a family friend.

Witnesses say a truck pulled forward and ran over the boy.

Christensen says her son was struck around 2 p.m. and was pronounced dead in hospital less than an hour later. 

The RCMP are investigating the incident.