Insurgents Shot Down U.S. Chopper

"Investigators probing the scene of an Army helicopter crash in Iraq that killed a dozen U.S. Soldiers have found evidence it may have been shot down, a senior military official said Monday.

Searchers at the scene found a tube that could be part of a shoulder-fired weapon that may have been used to shoot down the aircraft, said the official, who requested anonymity because the investigation was still continuing.

Col. David Sutherland, commander of U.S. forces in the Iraqi province of Diyala, has said the crash is still under investigation.

The Black Hawk crashed northeast of Baghdad on Saturday, a day when 25 U.S. troops were killed in Iraq."