Thousands of Sellafield staff - and ancillary workers, walked out again this week (Wednesday) in two separate strikes.
3,000 members directly employed by Sellafield Ltd went on strike for 24 hours, for the third time amid a long running pay dispute.
In separate action, around 300 staff employed by Mitie also walked out.
Chris Jukes, GMB Senior Organiser, said: “Neither or Sellafield nor Mitie members want to take industrial action – but they have been left with no choice by their respective managements.
“All our members want is a pay offer which at least keeps up with inflation – so they can afford to put food on their families’ tables as inflation and the cost of living go up and up.
“We urge Sellafield and Mitie to get round the table and negotiate a fair deal for everyone.”