2011 - Riots in Lebanon, following the fall of Saad Hariri's government. 2011 - Riots in Egypt, at least 846 killed. 2011 - Riots in Tafawa Balewa, Nigeria, 4 killed. 2011 - Prison riot in Sao Luis, Brazil, 6 dead. 2011 - Religious riot in Banten, Indonesia, at least 6 killed