Iraqi authorities say a suicide bomber targeting government-backed forces has killed at least 19 people and wounded 40 others.
The attack occurred as soldiers and militiamen were collecting their salaries at an office in the town of Taji, north of Baghdad.
It comes a day after at least 15 people were killed and 150 others wounded in an attack on a police headquarters in the northern city of Kirkuk. Police say that attack was carried out by a suicide car bomber joined by gunmen disguised as officers.
Authorities said the blast Sunday damaged nearby buildings and shops, and some reports put the death toll at more than 30.
There has been no immediate claim of responsibility for the attacks.