Bombings and shootings around Iraq's capital killed at least 22 people and wounded dozens more on Thursday.
Two suicide bombings, including a car bomb in the busy Karrada area of the capital, killed 10 people and wounded more than 30.
Gunmen shot dead the five off-duty army officers after stopping their car at a fake checkpoint on a road just north of Baghdad.
Shortly before nightfall, police said a car bomb near an outdoor market killed seven people and wounded 17 in Baghdad's Shi'ite neighborhood of Sadr City.
No one immediately claimed responsibility for Thursday's attacks, which came two days after a series of car bombings rocked the capital and killed at least 34 people.