Emmanuel Addeh in Abuja The Transmission Company of Nigeria (TCN) yesterday confirmed the shutting down of its operations in Kaduna state, throwing the north central state into total darkness. The federal government-owned company noted that it was compelled to comply with the warning strike action called by the Nigeria Labour Congress (NLC) after an analysis of apparent threats to its power assets in the state. A statement by the General Manager, Public Affairs of the company, Mrs Ndidi Mbah, made available in Abuja yesterday, while apologising for the blackout, noted that the TCN had turned down earlier demands for a shutdown, but noted that it later caved in to protect its assets from being compromised which will affect nationwide power supply.