Police arrested a senior Taliban commander who has escaped twice from prisons in Afghanistan, nabbing him during a clash in the country's south that left three insurgents dead, an official said Tuesday. The militants, led by Taliban commander Mullah Naqibullah and dressed in police uniforms, ambushed a police convoy Monday north of the Helmand province capital of Lashkar Gah, provincial police chief Mohammad Hussein Andiwal said. The ensuing gun battle left three militants dead, and wounded two policemen and Naqibullah, who was taken into custody, Andiwal was quoted as saying by the Associated Press.