Sudanese security forces have thrown a tight cordon around the capital Khartoum for Wednesday's Egypt-Algeria World Cup play-off.
Gates to Al-Merreikh stadium opened five hours before the 1730 GMT kick-off, with fans carefully segregated inside and outside the ground.
The winner of the game gets the last African place at the World Cup finals.
Sudan has deployed 15,000 police after a series of violent incidents involving fans of the two countries.
The play-off was arranged by Fifa at a neutral venue after Algeria controversially lost 2-0 in Cairo on Saturday, hours after their team bus was attacked by Egyptian fans.
Egypt's win left the top of Group C deadlocked, with both sides having identical records, but Algeria's coach blamed the defeat on injuries suffered by three of his players in the bus attack.
Violence between fans also flared after the game. At least 32 people were hurt, and the next day Egyptian businesses in Algiers were ransacked.To read full BBC story — Go Here Now.
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