Security forces have killed 21 more Taliban in South Waziristan, the army said on Tuesday as troops secured a major success in the offensive by regaining control of the strategic town of Sararogha after intense battles with the Taliban. "Yes, the forces entered Sararogha and gained control of this stronghold... after intense clashes with the Taliban," a defence official told Daily Times. He said troops were making steady progress towards winding up the operation before snow started falling in the region. A soldier was also killed in fighting. "We have reinforced positions in and around Sararogha and an advance on the Taliban headquarters of Makeen is under consideration," official sources told Daily Times.