Two roadside bombs exploded outside a mosque in the city of Baquba in central Iraq, killing 30 people, as Sunni Muslims were leaving Friday prayers.
Police said another 25 people were wounded in the blasts, which went off in quick succession at about midday.
The second exploded amidst a crowd of people who went to help those hurt by the first bomb.
The BBC reported the bombing was the second in Baquba in three days.
Also on Friday, a car bomb killed three Shi'ite Muslim pilgrims from Iran in the city of Samarra.