Thousands of people are being evacuated downstream of a major dam which has collapsed in Russian-held Ukraine.
President Volodymyr Zelensky said 80 towns and villages may be flooded after the destruction of the dam at Nova Kakhovka, which he blamed on Russia.
Water is surging down the Dnipro river, and is said to pose a catastrophic flooding risk to the city of Kherson.
Russia has denied destroying the dam – which it controls – instead blaming Ukrainian shelling.