People shout slogans during a demonstration next to the Egyptian embassy in Berlin, January 28, 2011.Police and demonstrators fought running battles on the streets of Cairo on Friday in a fourth day of unprecedented protests by tens of thousands of Egyptians demanding an end to President Hosni Mubarak's three-decade rule. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS CIVIL UNREST IMAGES OF THE DAY)