The US are going to transfer more than 18 tons of nuclear wastes of American-origin from Japan over to Kazakhstan for processing them into fuel for nuclear power stations.
Japan's nuclear watchdog on Friday dispatched an inspection team to the crippled Fukushima plant after workers found a huge toxic water leak and unexplained radiation hotspots.
Puddles with extremely high radiation levels have been found near water storage tanks at Japan's crippled Fukushima nuclear plant, as it moved to contain the latest of several toxic water threats.
The operator of the crippled Japanese Fukushima Daiichi nuclear plant has started pumping out radioactive groundwater to reduce leakage into the Pacific ocean.
President Hassan Rowhani said Tuesday Iran was ready for "serious" talks on its nuclear programme without delay and that US calls for tougher sanctions showed a lack of understanding.
US defense chief Chuck Hagel, meeting with his counterpart from Azerbaijan, said Monday it was imperative Iran quickly resolve concerns about its nuclear program.
New President Hassan Rowhani, a reputed moderate, told the West after taking the oath of office on Sunday the only way to interact with Iran is through dialogue, not sanctions.
The operator of Japan's crippled Fukushima nuclear plant said Friday it still did not know what caused steam seen inside a reactor building, nor why it was no longer there.
Japanese utilities on Monday asked regulators for permission to turn on 10 nuclear reactors, a move that could presage a widespread restart of atomic power more than two years after the Fukushima disaster.
North Korea Monday slammed South Korean President Park Geun-Hye for "hurting its dignity" with her call for denuclearisation and said its atomic weapons could never be a bargaining chip.