Egyptian soccer fans burned Algerian flags and rioted outside the Algerian Embassy in Cairo, smashing cars and shop windows, in an escalating row between the two countries over a bitter World Cup rivalry.Egyptian fans _ and the country's media _ have been thrown into a frenzy over reports that Algerians attacked and injured Egyptians after their countries' teams squared off in a World Cup qualifier in the Sudanese capital, Khartoum, this week. Algeria won the game 1-0, giving them a spot in the 2010 Cup in South Africa.