Bombings north and west of the Iraqi capital on Thursday killed six people, including four soldiers, and wounded 18 others, security and medical officials said. In the deadliest attack, a roadside bomb exploded near Dhuluiyah, north of Baghdad, killing four soldiers and wounding another, an army captain and a medical source said. And a wave of attacks hit Anbar province, west of Baghdad, killing two people and wounding 17, police spokesman First Lieutenant Ali Fakhri and medical sources from hospitals in Ramadi and Fallujah said. Four soldiers and four police were among those wounded in the attacks.