Publishedduration31 minutes agoSharenocloseShare pagelinkCopy linkAbout sharingimage copyrightPAimage captionThe government said there was "no blueprint" for decommissioning Sellafield
Robotic technology is to be used to decommission old nuclear sites such as Sellafield in Cumbria and Fukushima Daiichi in Japan.
A new £12m partnership will see the UK and Japan work together to develop new systems.
Long-reach robotic arms will be faster and reduce health risks, bosses say.
Adrian Simper, from the UK's Nuclear Decommissioning Authority (NDA), said they could tackle "complex work safely, securely and cost-effectively".
"This unique international collaboration allows us to pool expertise and experience from Japan," he said.
Fukushima Daiichi was hit by an earthquake and tsunami in March 2011 which destroyed key cooling functions and resulted in a triple meltdown.
More than 470,000 people had to be evacuated from their homes as a result.