The planned strike was to show solidarity with Milford Haven workers
A planned walkout at the Sellafield nuclear plant in support of staff angry about the use of foreign labour has been called off.
A series of strikes took place around the UK to show solidarity with workers at Milford Haven, west Wales, over the hiring of overseas contractors.
The gas terminal dispute was resolved when 40 non-UK workers were withdrawn.
About 800 staff at the plant in Cumbria agreed not to strike on Thursday after the agreement was reached.
Thousands downed tools around the UK in support of 200 workers who walked out over the dispute at South Hook in Milford Haven.
But following talks on Wednesday night, Hertel UK, the firm which employs contractors at the site, agreed to withdraw 40 foreign workers and employ suitably skilled British workers.
Workers at Sellafield took part in a 24-hour strike on the issue in February.
Bill Eilbeck, the representative of National Agreement for the Engineering Construction Industry (NAECI) at the nuclear reprocessing plant, said: "The lads have returned to work because the company involved has withdrawn foreign labour and are going to sort out local labour."