Four people have been killed and up to 20 injured in a violent protest in Afghanistan over cartoons satirising the Muslim Prophet Muhammad. Police shot into a crowd of rioters in the town of Qalat as they tried to march on a nearby US military base. It brings to 10 the number of people killed in Afghan protests over the cartoons in recent days. The incident happened as a French magazine became the latest publication to carry the controversial caricatures. The magazine, Charlie Hebdo, won the backing of a French court on Tuesday, after several Islamic organisations had complained that publication would amount to an insult to their religion. (BBC)