Unidentified gunmen using weapons equipped with silencers attacked security checkpoints and patrols across Iraq on Monday morning, killing at least 30 people.

Iraqi soldiers gather at site Iraqi soldiers gather at the site of a bus explosion in Iskandiriyah, 50kms south of Baghdad, May 10, 2010. [Xinhua]

The series of attacks occurred in different parts of Baghdad and in towns to the south, north and west of the capital.

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