Iraqi authorities say bomb attacks have killed more than 50 people across Iraq on Wednesday -- as violence increases after a relative lull.
At least four people were killed when a bomb exploded outside a Sunni mosque south of Basra.
Two car bombs targeting police killed seven people in the town of Shurqat, while bombings in the city of Mosul killed at least six people.
A suicide car bomber killed at least 10 people and wounded nine in an attack against a tribal leader near the town of Sinjar. The tribal leader, Sheikh Kanan al-Juharimur was wounded in the attack.
And, in Baghdad, two car bombs killed at least six people. Police say a spate of other fatal bombings have been reported.
A U.S. military spokesman in Baghdad Major General Kevin Bergner acknowledged that there has been an upturn in violence, but he said U.S. and Iraqi forces are trying to keep the pressure on extremist networks.