Of the 137 dead, 114 were killed in combat or "friendly fire" incidents, and 23 in accidents, said Pentagon spokesman Lieutenant Dan Hetlage.

In addition to the 495 wounded, 66 others were injured in accidents.

The updated toll came as the Defense Department announced that the remains of soldier Edward Anguiano, were recovered four days ago. He was killed on March 23, when a convoy he was travelling in was ambushed.

The Pentagon also said that two soldiers died on April 25: one when his vehicle flipped while riding through rough terrain, the other was killed by gunfire in circumstances still under investigation.

No Americans were listed as missing.

SPACE.WIRE