From CNN:

Explosives were looted from the Al-Qaqaa ammunitions site in Iraq while outnumbered U.S. soldiers assigned to guard the materials watched helplessly, soldiers told the Los Angeles Times.

About a dozen U.S. troops were guarding the sprawling facility in the weeks after the April 2003 fall of Baghdad when Iraqi looters raided the site, the newspaper quoted a group of unidentified soldiers as saying.

U.S. Army reservists and National Guardsmen witnessed the looting and some soldiers sent messages to commanders in Baghdad requesting help, but received no reply, they said.

"It was complete chaos. It was looting like L.A. during the Rodney King riots," one officer said.