Iraqi PM to parade progress on trip

"We are Islamic parties and the mosques are the only places where we can meet our supporters and followers," al-Amidi said.

Also Thursday, a car bombing killed four civilians and wounded 10 others near the morgue of Yarmouk hospital in western Baghdad, a police officer said, speaking on condition of anonymity because he was not allowed to release the information. Car bomb attacks have dropped in the Iraqi capital after the launch of security operation by Iraqi forces.

Police in Samarra reported finding a mass grave with 19 bodies, some bullet-riddled, in an area where al-Qaida had been active. Last Saturday police found an estimated 30 human remains in an area west of Samarra, 60 miles north of Baghdad.

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Associated Press writer Sameer N. Yacoub contributed to this report.