TUNISIAN police have fired tear gas to disperse protesters in the capital's Sejoumi neighbourhood after video of police stripping and beating a young man triggered widespread anger. The video prompted criticism from political parties and human rights organizations. Prime Minister Hichem Mechichi said the officers involved had been removed from duty and that the unacceptable incident was being investigated. Late on Friday, witnesses told Reuters protesters blocked roads, burned tires and threw stones at police, and that officers responded with tear gas and chased demonstrators through the streets of Sejoumi. The protesters shouted slogans against the police and the government.…