Afghan security forces have killed 19 Taliban militants in separate operations, while a soldier and policeman died in ambushes, officials said on Tuesday. Ten rebels were killed on Monday when police swept Taliban areas in Uruzgan, police said. In Farah, militants ambushed a police convoy on Monday, killing a police commander. Five Taliban militants were killed in the ensuing crossfire, a police official said. Gunmen also attacked an Afghan army patrol in the Kapisa province, wounding a soldier who later succumbed to his injuries, a defence ministry statement said. Taliban spokesman Zahihullah Mujahid dismissed the allegations: