Search crews found the wreckage of a German plane in northern Iraq with the six Germans and an Iraqi on board dead, an official said. Gunmen ambushed a convoy of trucks carrying construction material to U.S. military north of Baghdad Sunday, killing four Iraqi drivers. A police general also died in a roadside bombing in northern Iraq as violence continued a day after 20 people, including a U.S. soldier, were killed in a spate of bombings and shootings. A prominent Kurdish politician, meanwhile, said talks between Kurdish and Shiite leaders on forming a new government are "not going well" because of major policy differences. That could delay formation of a new government and any drawdown of U.S. forces.