At the U.S. base in Baghdad killed five soldiers.

As a result of fire, open in the United States military base at the Baghdad airport, killed five people, reports BBC News.
As reported in command of American troops, all five men - soldiers.
As the CNN, the perpetrator was a U.S. soldier who killed four colleagues and killed himself.
Suicide if he commit suicide or was killed in crossfire, not reported.
In previous times the Americans suffered a serious loss of 10 April, when five soldiers were killed in a roadside bomb exploded near the city of Mosul.