More attacks have rocked Iraq, which is experiencing its worst sectarian violence since U.S. troops withdrew in December 2011.
ພາບການໂຈມຕີຫຼ້າສຸດ ໃນທົ່ວອິຣັກ
![Onlookers gather outside Zain al-Abideen mosque, a Shi'ite place of worship, near where a suicide bomb attack occurred, Hilla, Iraq, May 21, 2013.](https://gdb.voanews.com/2c81c94b-8aee-4e85-9201-e76b74aac77a_w1024_q10_s.jpg)
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Onlookers gather outside Zain al-Abideen mosque, a Shi'ite place of worship, near where a suicide bomb attack occurred, Hilla, Iraq, May 21, 2013.
![An Iraqi woman passes by the scene of a car bomb attack in Kamaliyah, a predominantly Shi'ite area of eastern Baghdad, May 20, 2013.](https://gdb.voanews.com/e5c37d60-0447-4b50-8049-a4b935ca4e2f_w1024_q10_s.jpg)
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An Iraqi woman passes by the scene of a car bomb attack in Kamaliyah, a predominantly Shi'ite area of eastern Baghdad, May 20, 2013.
![Mourners stand beside coffins of four members of a family killed in Basra bomb attacks, during a funeral in Najaf, Iraq, May 20, 2013.](https://gdb.voanews.com/639900bc-bfd9-4b22-8f46-dcc672edc509_w1024_q10_s.jpg)
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Mourners stand beside coffins of four members of a family killed in Basra bomb attacks, during a funeral in Najaf, Iraq, May 20, 2013.
![Relatives carry the coffin of an Iraqi police officer killed by militants, Najaf, Iraq, May 20, 2013.](https://gdb.voanews.com/32648dc7-0a24-413f-bb99-dc14244b9619_w1024_q10_s.jpg)
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Relatives carry the coffin of an Iraqi police officer killed by militants, Najaf, Iraq, May 20, 2013.