Stern action will be taken in the death of three civilians after video surfaced of their detention by troops in Jammu and Kashmir, sources said, adding that the Indian Army has zero tolerance for violence against innocent civilians. The Army ordered a probe after the civilians were reported dead following their detention in connection with a terror attack. The probe is also looking at the overall conduct of the operations against terrorists in the region where nine officers and soldiers of the army have been killed in action in a month.