Ten suicide bombers have blown themselves up in Baghdad and northern Iraq, killing 22 people and wounding more than 100 in attacks targeting Iraqi and US forces.
The attacks involved seven cars and one motorcycle in Baghdad, while another suicide bomber blew up a car and a second motorcycle in the northern town of Al-Sharqat.
In Baghdad, the first bombing left two US soldiers injured after their military vehicle was targeted in the southeast of the city.
At least eight people were killed and 15 wounded when a suicide car bomber struck an Iraqi army checkpoint in Ash-Shab, in the north of the capital. Most victims were soldiers.
Another car bomber wounded five Iraqi soldiers and one civilian in an attack on an convoy near Andalus Square in the city centre.
Two Iraqi soldiers were killed when a bomber attempted to ram a truck through the main gate of an army camp in Bab al-Moadham.
A US convoy was targeted in Al-Amanah, in the southeast of the capital, by yet another suicide bomber who wounded three civilians.
Later in the afternoon, five Iraqi soldiers were killed and 41 injured by a motorcycle bomb in the southwestern district of Al-Bayaa.
One Iraqi was killed and nine people injured by another attack in the western district of Amariyah.
And two members of a Kurdish militia were killed after a car bomb exploded at a checkpoint leading to the home of Iraqi President, Jalal Talabani.