The number of buildings demolished at the Sellafield nuclear site has hit triple figures.
The power station, which started generating electricity in the mid-1950s, entered a formal decommissioning phase in 2005.
Well over 1,000 buildings need to be decommissioned in an operation expected to take more than 100 years.
The buildings so far demolished include chemical plants, research facilities, waste stores, reactor cooling towers, portacabins and a fire station.
Head of decommissioning Steve Slater said: “Demolition of the 100 buildings has released over 35,000 sq m of real estate, which is equivalent in size to five football fields.
“This valuable space at Sellafield is necessary to fuel our continued decommissioning programme. We’re using the extra room to help retrieve, process and re-package historic nuclear waste to make it safe for long term storage and disposal.”