Iraqi officials say that at least three people were killed and 13 others wounded in a roadside bombing in Baghdad. The attack comes just over a week before U.S. troops are to withdraw from urban areas in Iraq. Officials have warned they expect militants to step up attacks around the June 30 deadline. A police officer says the roadside bomb struck a minibus on Monday in the Habibiyah area near the former militia stronghold of Sadr City, The Associated Press reported.