A Taliban commander was killed and his two colleagues arrested in a police raid in southern Afghanistan late on Monday while a senior police officer was injured in an overnight clash with Taliban in the same region.A Taliban commander named Abdul Haleem was killed in Kalat city of Zabul province when police raided their hideout Monday night. The three militants were hiding in a house and on seeing the police approaching they opened fire and exchange of fire resulted in the killing of the commander while his two other colleagues surrendered. Police chief of the Zabul province Nabi Mulakhail said the commander was wanted to the government. He would not disclose names of the two arrested people. Separately, a district police chief was injured as a result of a clash between Taliban and police in the neighbouring Helmand province last night.