PESHAWAR At least 31 militants were killed and 19 others injured during clashes with security forces in Orakzai and Kurram Agencies on Friday. According to reports, security forces backed by gunship helicopters, pounded militants hideouts in various parts of Upper Orakzai Agency. During the clashes, 28 militants were killed and 15 others were injured. The security forces have also taken control of Ghundi, Nishti Kundi and Teronerak localities of the agency. In the Friday clashes, some four hideouts of the militants were also destroyed. Meanwhile, at least three militants were killed and four others injured during clashes between two militants groups. As per details, the clashes erupted and continued for the second day in Warasta Mela and Neka Ziarat areas of Central Kurram Agency between two militants groups-Mulla Tofan group and its rival group. Both the rival groups used heavy and sophisticated arms in attacks against each other. So far at least 7 militants have been killed during last two days clashes.