International Atomic Energy Agency (IAEA) Director Rafael Grossi says he is en route to Ukraine where he'll meet President Volodymyr Zelenskiy and present an assistance program for "catastrophic" flooding in the country sparked by last week's breach of the Kakhovka dam. "I will assess the situation at Zaporizhzhya nuclear power plant," he added in a tweet on June 12. The plant is upstream from the dam and faces a potential water shortage as the downstream breach drains water levels. To read Grossi's tweet, click here.