An independent expert panel of the United Nations, tasked with assessing the potential impact of a nuclear war, held its first meeting for two days through Friday, with Masao Tomonaga, an 82-year-old hibakusha atomic bomb survivor and doctor from Nagasaki, selected as co-deputy chair.

Russian ambassador to the United Nations held on Monday his first news briefing as president of the Security Council, amid international criticism against Russia's Putin, accused of war crimes.