The violence in the city of Khosous, north of Cairo, broke out after Coptic Christians drew crosses on the walls of a Muslim school, angering members of the Muslim community, said spokesman Ahmed Osman.
MORE: http://www.cnn.com/2013/04/07/world/africa/egypt-clashes/index.html?hpt=iaf_c1
See also...
Official: 5 killed as Muslims, Christians clash in Egypt
http://www.cnn.com/2013/04/06/world/africa/egypt-clashes/index.html
