SOUTH WAZIRISTAN (APP) - Six militants were killed and 10 were seriously injured during an exchange of firing between the extremists and security forces at Wana-Tank road near Rustam Ada in South Waziristan Agency here on Monday morning. According to Political Agent, exchange of firing took place as militants attacked a security check-post with heavy weapons. Prompt and effective retaliation by security forces compelled the attackers to escape from the scene leaving behind the dead bodies of their companions. The security forces also arrested two injured militants. Meanwhile, The security forces have been continuing their search operation in parts of Swat and Malakand and during the last 24 hours recovered arms and ammunition. Security forces carried out search operation at Tangbanr, Giga and recovered one machine gun, three pistols and one rifle including ammunition. During search operation in Kalagai- District Shangla the security forces apprehended a known terrorist Khanzada from his house. Security forces conducted search operation at Bashkhela near Matta, destroyed 2 tunnels, 5 IEDs and recovered 2 machine guns. As part of relief activities 128,687 cash cards have been distributed amongst the IDPs of Malakand. Meanwhile, return of IDPs of Malakand have commenced smoothly according to an envisaged programme by provincial government in coordination with Special Support Group. The in-camps and off camps IDPs today were escorted by security forces to Barikot, Landakai, Kota and Guratai in Swat.