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A huge blast apparently aimed at a passing police convoy tore through the streets of Baghdad on Friday.

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Emergency services rushed to the scene near the Rashid Street shopping district.

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Police have been a regular target of insurgents in attacks across Iraq.

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The blast left a crater in the ground. Witnesses said a suicide bomber drove up to police and exploded his device.

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Iraqi police took up positions as security forces tried to secure the area of the attack.

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Iraqi police retrieved burned weapons from one of the police vehicles caught in the blast.