Sunni-Shiite tensions and violence have risen for months in Iraq, which was wracked by sectarian fighting during the height of the Iraq war last decade.
MORE: http://www.cnn.com/2013/06/18/world/meast/iraq-violence/index.html
See also...
Violence kills 12 in Iraq
http://www.cnn.com/2013/06/17/world/meast/iraq-violence/index.html
Series of bombings kills 15 in Iraq
http://www.cnn.com/2013/06/16/world/meast/iraq-bombings/index.html
Close to 60 killed in attacks across Iraq
http://www.cnn.com/2013/06/10/world/meast/iraq-violence/index.html
