Bomb blasts ripped through more than a dozen Iraqi cities Monday, killing 60 security personnel and civilians in the worst attack this year, one that highlighted al-Qaeda’s resolve and ability to wreak havoc.

The bloodbath comes less than two weeks after Iraqi officials said they would be open to a small number of U.S. forces staying in the country past a December 31 withdrawal deadline.

The blasts were coordinated to go off on Monday morning and included parked car bombs, roadside bombs, a suicide bomber driving a vehicle that rammed into a police station and even bombs attached to light poles.

Iraqis were furious at security officials and Prime Minister Nouri al-Maliki.

“Where is the government with all these explosions across the country? Where is al-Maliki? Why doesn’t he come to see?” said Ali Jumaa Ziad, a shopowner in Kut, where the worst of the violence occurred. Mr. Ziad was brushing pieces of human flesh from the floor and off equipment in his shop.

Mr. al-Maliki’s spokesman and the military spokesman did not answer telephone calls.

Twin explosions rocked the market in Kut, 160 km southeast of Baghdad, where Mr. Ziad works.

Police spokesman Lt. Col. Dhurgam Mohammed Hassan said the first bomb went off in a freezer used to keep drinks cold. As rescuers and onlookers gathered, a parked car bomb exploded; 35 people were killed and 64 injured.

Police sealed off the area where human flesh was scattered on the ground and bloodstained walls were punctured by shrapnel.

Earlier this month, Iraqi political leaders announced they would begin negotiations with the U.S. to determine whether to keep a small number of American forces in the country past December 31.

In Diyala province, seven bombs went off in the capital of Baquba and towns nearby, said Faris al-Azawi, the province’s health spokesman. Five soldiers were killed in Baquba while five people were killed in other attacks around the province.

Just outside the holy city of Najaf, a suicide car bomber ploughed his vehicle into a checkpoint outside a police building, said Luay al-Yassiri, head of the Najaf province security committee.

Police opened fire when the driver refused to stop, and then the vehicle exploded. Mr. al-Yassiri said four people were killed and 32 injured. Fire-fighters sprayed water on burning cars while a body covered with a red sheet was loaded into a police vehicle.

Outside the nearby city of Karbala, a parked car bomb near a police station killed three policemen and injured 14 others, according to two police officers.

In the northern city of Tikrit, two men wearing explosives belts drove into a heavily guarded government compound wearing military uniforms, which helped them avoid notice, said Mohammed al-Asi, the provincial spokesman.

The men parked their vehicle and walked to a building where the anti-terrorism police work. When the men approached the building, the guards ordered them to stop and opened fire. One bomber was killed but the other got inside, blew himself up and killed three people, Mr. al-Asi said.

It was another embarrassing security breach for security officials at the compound. Earlier this year, insurgents penetrated the compound’s security and attacked a mosque where prominent officials were praying.

In the northern city of Kirkuk, a car bomb exploded next to a police patrol, injuring four police officers. About 30 minutes later, a motorcycle with a bomb planted inside it exploded, killing one person. Late Sunday, four bombs also blew up near a Syrian Orthodox Church in Kirkuk. No one was injured in the attack which damaged the church walls.

In Baghdad, a parked car bomb exploded near a convoy carrying officials from the Ministry of Higher Education, police and health officials said. Eight people were wounded, the officials said. The Minister was not in the convoy.

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