The responsible parties would be referred to a judicial department within the military and held accountable, the statement said.
All 176 people on board were killed in the crash. The Iranian military statement expressed condolences to the families of the victims.
The United States and Canada had said that the plane was shot down, a claim Iran had initially denied.
(Reporting by Babak Dehghanpisheh; Editing by Jacqueline Wong)
