The current strike action happening at Eskom has caused many to worry about whether or not the power utility will be able to keep the lights on across South Africa.

Those worried will probably not get much comfort from the fact that Eskom’s own headquarters have just lost power, Bloomberg reports.

Eskom’s claim that it cannot afford to pay its workers an increase this year has led to picketing at Megawatt Park, their northern Johannesburg headquarters, as well as blocking of entrances at power stations around the country.

Eskom spokesperson Khulu Phasiwe confirmed on Twitter that the head offices had suffered a blackout.

“Power supply has just been ‘mysteriously’ cut off at Eskom head office Megawatt Park,” he tweeted.

READ MORE: Unions to attempt to shut down Eskom in protest at 0% increases

The parastatal said it would consider applying for a court interdict to secure power supply if the strike action got out of hand.

There have been several incidents of employees being intimidated and blocked from entering power stations by protesting workers, who are demanding a salary increase of 15%.