At least four militants were killed and a soldier was injured when the Pakistani Army lunched an operation in the country's Balochistan province on Sunday. The Inter-Services Public Relations (ISPR) said in a statement that the forces conducted the armed offensive in Kohlu and Dera Bugti areas of the province. The troops also destroyed several hideouts of the militants during the operation. The ISPR said that the killed militants were involved in in extortion, kidnapping for ransom, attacks on security forces and other terrorist activities in the province. The recent offensive was a continuation of Operation "Radd ul Fasaad", going on in various parts of the country since February this year. The joint operation by army and other law enforcement agencies aims to eradicate the hidden sleeper cells of militants across the country.