Drone helps Fukushima clean-up
9 July 2014 Last updated at 23:39 BST
Scientists at the University of Bristol have successfully mapped radiation levels around a Japanese power station using a drone.
They claim it is the safest way to monitor levels after the tsunami triggered a nuclear disaster at Fukushima in 2011.
Helicopters and other monitors have been doing similar tests but none have been able to get close enough to compile a comprehensive profile.
Michelle Ruminski reports.