Riots raged on in the northern Nigerian city Kaduna after violence there forced beauty pageant organisers to abandon plans to stage Miss World in Nigeria.Fighting which began as protest by Muslim youths against a newspaper article on the pageant has now degenerated into a bloody street war between Muslims and Christians, witnesses say.An AFP journalist was forced to join around a 1,000 refugees hiding in the Kronenbourg brewery in the south of the city near the main road to Abuja, protected by troops and an armoured car."We had to run for our lives. They came to my house in...