Five Iranian security officers killed at Sufi protest in Tehran

By Bozorgmehr SharafedinLONDON (Reuters) - Five members of Iranian security forces were killed in Tehran on Monday night in clashes with protesters from a religious order, 300 of whom were arrested, the police said.Members of the Gonabadi Dervishes, who follow the mystical Sufi strain of Islam, considered a threat by the theocratic establishment, clashed with riot police after gathering at a police station to demand the release of members of their sect.Three riot police were killed when a bus wa