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At least 27 people were killed and 58 others wounded in Iraq Thursday when a suicide bomber wearing an explosive vest blew himself up among Shiite pilgrims, police said.
The bomber was wearing a police uniform, police said. The incident occurred in al-Saadiya, about 75 miles (120 kilometers) northeast of Baghdad.
The suicide bombing followed a pair of blasts in eastern Iraq that killed nine and injured 25, health officials said.
Those attacks took place in Wasit as thousands of worshipers jammed the streets to attend festivals marking Ashura, the most important holy day on the Shiite Muslim calendar.
Ashura commemorates the death of Imam Hussein, grandson of the Prophet Mohammed.
Dozens were killed in Iraq during one of the most holy days for Shiite Muslims. CNN's Mohammed Jamjoom reports.