U.S. Markets open in 3 hrs 38 mins
5 / 16

Members of the army walk at the tomb of late President Sadat during the 40th anniversary of Egypt's attack on Israeli forces in the 1973 war, in Cairo

Members of the army walk at the tomb of late President Anwar Sadat during the 40th anniversary of Egypt's attack on Israeli forces in the 1973 war, at Cairo's Nasr City district, October 6, 2013. REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: POLITICS CIVIL UNREST MILITARY ANNIVERSARY)

Violence as Egypt marks 40th anniversary of October 6 war

Clashes erupt as the country

celebrates the 40th anniversary of an Egyptian attack on Israeli forces.