Officials say bombings in and around the Iraqi capital, Baghdad, have killed at least eight people.

Police said the deadliest of Wednesday's attacks took place in Baghdad's western neighborhood of Amiriyah, where a bomb exploded in a commercial area, killing three civilians and wounding 12.

Another bomb struck a convoy of Shiite militiamen in the capital's northern Shula neighborhood, killing two fighters and wounding four. Shiite militias have grown influential recently in the fight against Islamic State militants.

Police said separate bombings killed three more civilians and wounded 20 in markets in the northern Shaab neighborhood and the eastern suburb of Husseiniyah.

Medical officials confirmed causality figures. All officials spoke on condition of anonymity as they were not authorized to release information to journalists.