Smoke rises from central Tikrit as Iraqi security forces attack Islamic State extremist positions 130 kilometers (80 miles) north of Baghdad, Iraq, Sunday, March 29, 2015. (AP Photo/Khalid Mohammed)
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Smoke rises from central Tikrit as Iraqi security forces attack Islamic State extremist positions 130 kilometers (80 miles) north of Baghdad, Iraq, Sunday, March 29, 2015. (AP Photo/Khalid Mohammed)
