3 U.S. Troops Killed in Afghanistan

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Two U.S. Soldiers Killed in Afghanistan (ABCNEWS.com)

Pentagon: They Died as Heroes (AP)

By PAULINE JELINEK, Associated Press Writer

WASHINGTON (AP) - Three American soldiers were killed and 20 wounded in Afghanistan (news - web sites) Wednesday when a bomb launched from an Air Force B-52 bomber missed its target. The friendly-fire accident produced the worst U.S. casualty toll of the war.

The Pentagon (news - web sites) initially reported that two were killed. Spokeswoman Victoria Clarke later said one of the injured soldiers had died en route to a hospital. She had no details on the seriousness of the other injuries.

``These were U.S. special forces that died,'' she said, adding that five Afghan troops also were killed.