SWAT - Troops killed at least 18 militants including six would-be suicide bombers during an ongoing offensive against Taliban insurgents in Swat, officials said Saturday. The security forces also arrested eight militants. Meanwhile, a remote controlled bomb planted by some unknown miscreants blew up, but no casualty was reported. As per details, in the ongoing operation against militants, the security forces arrested eight militants from various parts of Swat including five from Kabal area. They have been identified as Abdul Wadood, Zahidullah, Wazir Zada, Liaqat and Sattar. Three militants namely Ziaul Haq, Murad and his father Mohammad Jan were apprehended from Sarafa bazaar of Mingora city. After their arrested the security forces shifted them to unknown location for interrogation. Furthermore, a dead body has also been recovered from Kota village of Barikot. Meanwhile, a remote controlled bomb planted by some unknown miscreants blew up at Alingro Dehri Road. However, no causality was reported in the incident. AFP adds: Gunship helicopters were called in after intelligence and locals said a suicide attack mastermind was present in Charbagh town in the Swat valley, an area the army previously said had been emptied of militants. At least six would-be suicide bombers were killed in the shelling by gunship helicopters, the same place was being used as launching pad for training the suicide attackers, an army statement late Friday said. A military official in Mingora, the main town in Swat and 20 kilometres from where the air raid was carried out, confirmed the strikes in the Mangaltan area of the town and the death toll, adding several militants were also wounded. Separately, the bullet-riddled bodies of six suspected Taliban rebels were Saturday found in a village in Swat valley eight kilometres from Mingora, police said. Six badly mutilated bodies were found from two different places at Odigram, Ghulam Farooq, a senior police official told AFP by telephone, adding that the bodies had bullet wounds. It was not clear who had killed them. Earlier this month, 18 suspected militants turned up dead in Swat under similar circumstances. A military official said that since July almost 200 bodies of militants and some civilians had been found in the region. Meanwhile, the military said Saturday it continued search and clearance operations across Malakand district and Swat. Security forces carried out search operation at Thana area and killed five terrorists during exchange of fire, it said in a daily update on the operation. Another insurgent was killed during the operation at a village called Dandial near Thakot it added. Military previously said it had cleared Swat of extremists in an offensive launched earlier this year after militants extended their grip into the valley. Authorities say more than 1,971 militants and over 172 security personnel have been killed in the offensive since late April, but the death tolls are impossible to verify independently.