Tokyo Electric Power Co. (Tepco) says a robot designed by Hitachi-GE Nuclear energy "for the first time took clear pictures showing water drips from the reactor containment vessel into the building’s basement via an elastic pipe joint," reports Bloomberg.
Here's more from Bloomberg:
"The robot was lowered into the Unit 1 suppression chamber on May 27 and maneuvered inside for three days, Tepco said. The machine took still and video images while being controlled from hundreds of meters away ... Last November Tepco placed a remote-controlled boat inside Unit 1's basement in an effort to find the source of the leaks. The vessel couldn’t provide enough precision to identify the source, Tepco said."
Until the leaks can be plugged, the plant must continue to pump out the contaminated water and then store and filter it to remove the radioactive material.
Radiation inside Unit 1 measured as high as 10 sieverts per hour months after the disaster, according to Tepco, which is enough to kill a person "within a few weeks."