Iran's semiofficial Fars news agency is reporting that a soldier has shot three policemen to death in the country's south. The Saturday report said the incident took place at a police station near the port city of Bandar Lengeh, some 1,000 kilometers , or 620 miles, south of the capital Tehran. It said the soldier was immediately arrested. The report did not elaborate on a motive or the rank of the policemen saying only that the case is under investigation. Such incidents are reported by Iranian media occasionally. In 2016 a soldier killed himself after shooting to death three of his comrades in southern Iran. Experts blame incidents on anger over the mandatory 2-year military service for men aged 19 and above.