Soldiers die as helicopters collide
Two Army helicopters have crashed at a base in Washington, US, killing four soldiers.
An earlier report from Joint Base Lewis-McChord indicated two other soldiers were injured. However, spokesman JC Mathews said the two OH-58 Kiowa helicopters that crashed on Monday night were both two-seat aircraft.
They crashed in the south-west training area of the base near Tacoma.
The victims have not yet been identified.