The Transmission Company of Nigeria TCN has disclosed that the Offa 132kV Transmission Substation, Osogbo Region, was invaded by heavily armed men who forcefully gained access to the control room and held all personnel on duty hostage at gunpoint.

The TCN General Manager Public Affairs, Ndidi Mbah who made this known in a statement at the weekend explained that the attackers ordered the operator on duty to open both the Offa and Ojoku 33kV feeders at exactly 12:45 a.m. on Thursday, 7th May 2026.

They further demanded a total shutdown of the substation. During the incident, control switches and relay buttons were tampered with, and the 40MVA transformer was opened at approximately 1:07 a.m.

However, after the operation, the 40MVA transformer was restored at 1:13 a.m., the Offa 33kV feeder was restored at 1:14 a.m., and the Ojoku 33kV feeder was restored at 2:15 a.m. Following the attack, TCN, Osogbo Region, says it has declared force majeure on Offa 132kV Transmission Substation facility.

TCN also added it regreted the inconvenience this incident may have caused and reaffirms its mandate to transmit bulk electricity efficiently to distribution companies’ load centres across the country.