Manipur, Sep 05 (ANI): Security has been stepped up as shutdown called by United Naga Council (UNC), in Manipur entered second day on Friday (September 05), to protest against recent killings of civilians by security forces. On August 30, two civilians were killed and 26 injured in violent police firing to control a rally protesting against the imposition of Criminal Procedure Code (CrPC) 144 in Ukhrul district. The resolution to impose a ban in the state was passed on Monday (September 01) after UNC President, L Adani, convened a high level meeting with representatives of Naga Civil Organisations and chiefs of different Nagaland tribes. Superintendent of Police, Ishak Shah, said till now the shutdown was peaceful but they feared students association might come out and obstruct vehicular movement on national highway.