The British government has injected an extra £1.3bn (€1.5bn, $1.6bn) to support the construction of two France-supplied EPR nuclear plants at Sizewell C in southeast England.
The funding is the largest to date and will allow early construction works at the £20bn facility to continue ahead of a final investment decision later this year.
The money comes from existing budgets will support continuing preparatory work such as improvements to roads and rail lines around the Suffolk site, ensuring the necessary local infrastructure is in place before full construction begins, a government statement said.
It said committing further government support at this stage will help the project stay on schedule and keep down overall costs.