At least five militants were killed while three security personnel sustained injuries during clashed between the forces and militants here in Swat on Monday, sources said. The clashes occurred in Matta nad Kalam area here as the forces conducted operation against the miscreants. The militants opened fire on the troops. The forces killed at least five miscreants in retaliated firing while three security personnel also sustained injuries. The forces operation was underway till filing the report to search for the more militants in the area.