Iraq has seen a sharp increase in tension between its Shiite and Sunni populations since April, when security forces raided a site used by Sunni protesters to demonstrate against the Shiite-led government.
MORE: http://www.cnn.com/2013/09/29/world/meast/iraq-violence/index.html
See also...
Attacks kill 30 in Iraqi cities of Baghdad, Mosul
http://www.cnn.com/2013/09/26/world/meast/iraq-violence/index.html
Attack in Iraq leaves 10 dead
http://www.cnn.com/2013/09/25/world/meast/iraq-violence/index.html
Wave of attacks in Iraq leave at least 35 dead; more than 100 hurt
http://www.cnn.com/2013/09/17/world/meast/iraq-violence/index.html
Iraq suicide blast kills 36 at funeral in ethnic minority Shabak town
http://www.cnn.com/2013/09/14/world/meast/iraq-suicide-blast/index.html
