A member of Canada’s special forces has been killed, and three other soldiers have been wounded in Northern Iraq.

National Defence says it was a friendly fire incident.

The soldier has been identified as Sgt. Andrew Joseph Doiron, and was stationed at Garrison Petawawa, Ontario with the Canadian Special Operations Regiment.

The three wounded soldiers are receiving medical care, but the extent of their injuries isn’t known. 

A statement from National Defence says the soldiers had just returned to an observation post at the front line when Kurdish forces mistakenly fired on them late Friday. 

About 69 special forces members were sent to northern Iraq in September in a non-combat mission to help train Kurdish fighters.