Imphal, July 28 -- Kuki-Zo groups in Manipur have launched an indefinite counter economic blockade on the highway connecting the ethnic strife-torn state with neighbouring Nagaland, saying it will continue until the government ensures the free movement of essential commodities to their areas. Naga and Meitei groups protesting the killings of six Naga hostages last month have intensified an economic blockade against Kuki-Zos. Kuki Civil Society Organisation Working Committee said Kuki-Zo people of Ukhrul, Kamjong and Kangpokpi have endured "obstruction of essential commodities" while the government watched in silence. "All government and private institutions within the jurisdiction of 14 Kuki-Zo villages shall remain closed until further notice," said the committee in a statement on Sunday. It added that the decision for the counter blockade was unanimously taken following consultations with the Kuki-Zo civil society organisations of Ukhrul and Kangpokpi. Naga and Kuki-Zo tensions escalated in Manipur after May 13 twin ambushes left four people, including three church leaders, dead....