Iraqi soldiers and security guards stand at a checkpoint outside of the building which houses the offices of Iraqi Prime Minister Ibrahim al-Jaafari's Islamic Dawa Party

A car bomb has exploded near the offices of Iraqi Prime Minister Ibrahim al-Jaafari's party, killing at least one person.

Iraqi officials Friday said a guard was killed and at least one other person was hurt when the bomb detonated near the political offices of the Islamic Dawa party in Baghdad's Mansour neighborhood.

They say the prime minister was not in the office, which used to be his residence, when the explosion occurred.

Meanwhile, U.S. military officials say coalition forces have detained 12 suspected terrorists and seized weapons during three separate operations in the northern city of Mosul.