The cartoonist has apologized on Twitter, saying it was an oversight.

The cartoon shows hockey players representing other provinces supporting a hockey player from Saskatchewan after 16 players and staff with the Humboldt Broncos junior hockey team were killed when their bus collided with a transport truck.

A Halifax cartoonist, who gained worldwide recognition with a cartoon of Cpl. Nathan Cirillo at the base of the National War Memorial, is wrapping up his year with the unlikeliest of presents.