Inspectors from the International Atomic Energy Agency have met with Ukraine's president, ahead of a visit to the Russian-occupied nuclear power plant in Zaporizhzhia.
The UN mission comes amid fears of a possible nuclear catastrophe at the sprawling complex, which for weeks, has come under shelling.
There are high hopes this IAEA assessment can lead to demilitarisation at the plant.
The European Union is sending 5 million potassium iodide tablets to Zaporizhzhia at Kyiv's request in case locals are exposed to radiation.
IAEA former deputy director general, now a fellow at think the Stimson Centre, Olli Heinonen spoke to Corin Dann.