He said initial investigation reports suggested that the incident occurred due to technical fault.
Six people including two foreign ambassadors were killed when a Pakistan Army helicopter attempted a crash landing here in Gilgit.
The Ambassadors of Norway and Philippines and the wives of Indonesian and Malaysian envoys were killed in the deadly incident along with the two pilots of the helicopter.
Prime Minister Nawaz Sharif has declared one-day mourning over the Naltar helicopter crash.
On his directions, aircraft and helicopters have been placed to evacuate injured diplomats.