Searching efforts have been expanded for the two military aircraft that went missing during their training session off the coast of the central Binh Thuan province, near Phu Quy Island.

The Russian-made aircraft SU22, belonging to Division 370, took off at Thanh Son airport in the central province of Ninh Thuan.

Air controllers lost contact with the pilots around 11:30 am on April 16.-VNA