Two policemen were killed by unidentified gunmen in a southern Philippine province, a regional police chief said Saturday, DPA reported. Chief Superintendent Joel Goltiao said the victims were on board a van when they were attacked by gunmen late Friday along a highway in Sultan Kudarat town in Sharif Kabunsuan province, 930 kilometres south of Manila. "The motive might be clan feud involving one of the policeman and naotrrher family," he said. Goltiao added investigators have been dispatched to probe those who might be involved behind the attack.