They also Wednesday locked the Abuja headquarters of the TCN, as the workers protest barely 24 hours after the Minister of Power, Sale Mamman, removed the chief executive from office.

Mamman had on Tuesday sacked Mohammed and replaced him with Sule Abdulaziz in an acting capacity.

The minister had described the decision as part of ongoing measures to reposition the power sector for improved service delivery.

He had also confirmed the appointment of four directors who had been on acting capacity.