Three pilots were killed and a fourth was injured when two attack helicopters belonging to the US Army crashed over central Alaska, while they were returning from a training mission, according to Reuters.
And the US Army announced that the two choppers crashed after they participated in military exercises in Alaska, in the second accident of its kind in less than a month.
A statement from the US Army's 11th Airborne Division said the two Apache helicopters crashed near Hailey, Alaska, and added that "the incident is under investigation, and more information will be revealed as it becomes available."
The incident follows a similar one late in March, when two US Army Black Hawk helicopters crashed during a training flight in Kentucky, killing all 9 soldiers on board.
Several other accidents of US military aircraft have been recorded in recent years, including the killing of two US National Guard personnel in the crash of a "Black Hawk" plane, in Tennessee, during a training exercise in Alabama last February.
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