Two people were killed when an Iranian fighter aircraft crashed in Fars Province during military training. IRNA reports that a military spokesman said the F4 jet was from the Bandar Abbas Flight Base and the reason for the crash has not been determined.

The pilot and co-pilot were killed in the accident, the report indicated.

Iran’s F4 jet fighters were bought from the U.S. in the 1970s and are about four decades old on average.