Ten months' worth of work to repair a leak at Sellafield is finally coming to an end.

Teams have been working on the leak to the older part of the site since it was discovered in October last year.

Now the work is finally coming to an end after months of planning and effort to make necessary repairs.

Following routine maintenance work, staff had discovered that the water levels in one of the sump tanks were falling.

The concrete tank, which measures three square feet, contains some nuclear material and water. The water is used to provide protection against radiation.

Sellafield teams worked on a design and solution to stop the leak for around two months before they were able to carry out the repairs. Work began in mid-January on emptying the material contained in the tank.

This cleared space for it to be lined with concrete to fix the leak.

It is now hoped the work will end this month.

At the time of the leak being discovered, a spokesman for Sellafield said increased local monitoring and detection systems around the tank had been increased.

Operations continued around the site as normal and regulators, stakeholders and site personnel had been informed.