Fukushima No. 1 Nuclear Power Plant operator TEPCO has announced that the 30 cm long, 2 kg underwater robot "Little Sunfish" has been deployed inside Fukushima Daiichi’s No. 3 reactor.
It's mission is to inspect the damage inside the reactor and locate parts of melted fuel believed to have fallen to the bottom of the chamber following the meltdown that occurred there in March 2011.
So far nothing of note has been found, though spokesperson said the robot had captured views of the underwater damage that had not been previously seen.
More to follow