A suicide bomber detonated a truck filled with explosives Friday outside an Iraqi base in Mosul, killing five U.S. soldiers and two Iraqi policemen in the deadliest attack for U.S. forces in more than a year, according to the U.S.

A bomb struck a municipal council building Tuesday in Baghdad, killing two U.S. soldiers, two U.S. government civilian employees, four Iraqi civilians and an Italian of Iraqi origin working as an interpreter for the Americans, U.S. officials said.