A roadside bomb targeting an Iraqi police patrol killed two pedestrians Sunday in eastern Baghdad, police said. The attack missed the police convoy but wounded two other civilians in the Iraqi capital's Sinaa neighborhood, an officer said on condition of anonymity because he was not authorized to talk to media. Also in eastern Baghdad, drive-by shooters sprayed bullets at four guards for the Iraqi finance ministry, killing one and injuring two others, the same officer said. In Diwaniyah, 130 kilometers (80 miles) south of the capital, gunmen assassinated Akeel al-Khalidi, a defense ministry employee, as he left his house for work, another police officer said on condition of anonymity out of fear of reprisals. Another roadside bomb went off near an American military convoy in Iskandariyah, 50 kilometers (30 miles)south of Baghdad, damaging one Humvee, police said. There was no word on casualties, and U.S. troops sealed off the area, the Associated Press reported.