A brutal day with chlorine bombs in Iraq

Four years later:

Three trucks rigged with chlorine bombs exploded in the insurgent stronghold of Anbar province Friday, in the latest efforts by insurgents to use the toxic chemical to boost the lethal power of their attacks, U.S. military officials announced Saturday.

The U.S. officials said at least 350 people and seven U.S. soldiers were injured and two policemen were killed in the attacks. As many as 10 civilians may have been killed in two of the blasts near Fallujah, said Col. Sami Jabara, a spokesman for the Ministry of the Interior.