A car bomb set off in the northern Iraqi provincial capital of Sulaimaniya has wounded up to 30 people on what has been a violent day across Iraq.
Sulaimaniya's governor, Dana Ahmed Majid says a suicide bomber blew up his explosives-packed car outside a large hotel frequented by officials, killing at least one person.
Such attacks have been rare in the relatively stable Kurdish north.
Hours earlier in Baghdad, the U.S. military reported that five U.S. soldiers on foot patrol were killed in a suspected suicide bomb attack. Coalition officials say three other U.S. soldiers and an Iraqi interpreter were wounded.
In Muqdadiya, northeast of Baghdad, two people were killed and more than 20 others were wounded when another suicide bomber detonated an explosives-packed vest.
And a female suicide bomber blew herself up outside the home of a local tribal leader, Sheikh Ghadban al-Karkhi in Diyala province, killing him and three others.