Police say the deadliest of today's attacks took place in the eastern neighbourhood of Sadr City when a car bomb exploded in an outdoor market for secondhand motorcycles and bicycles, killing six civilians and wounding 18.
Another police officer says a bomb-laden motorcycle exploded in Baghdad's northern Waziriyah neighbourhood, killing three civilians and wounding 11.
Officials also say gunmen in a speeding car attacked a police checkpoint in the town of Tarmiyah, killing an officer. Tarmiyah is about 50 kilometres (30 miles) north of Baghdad.