Police officials in Baghdad said they believe al-Qaeda in Iraq is behind Balad attacks as they have been trying to agitate the sectarian tension between Arab Muslims Sunni and Shiite.
MORE: http://www.cnn.com/2012/06/29/world/meast/iraq-violence/index.html?hpt=wo_c2
See also...
5 killed in attacks in Iraq
http://www.cnn.com/2012/06/28/world/meast/iraq-violence/index.html?hpt=imi_c2
