Earlier in the day, an explosion near the Patriotic Union of Kurdistan political party office in Jalula killed two and wounded five, police officials said. Jalula is also in the disputed territories and is some 125 kilometers (80 miles) northeast of Baghdad.
Both Arabs and Kurds claim Jalula, and a local policeman said the violence resulted from ongoing tensions between the two ethnic groups. He did not elaborate.
Medics in nearby hospital confirmed the Jalula casualties. All officials in the two spoke on condition of anonymity because they were not authorized to release details to journalists.
The PUK is headed by the Iraqi president Jalal Talabani, who announced a plan last week aimed at easing the military standoff between the central government and Kurdish authorities.
Associated Press writer Sameer N. Yacoub contributed reporting.
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