10. Strengthening the safety and security of nuclear material and facilities was of even greater importance, as demonstrated by the accident that occurred in Ukraine 24 years earlier at the Chernobyl nuclear power plant.
Il importe encore plus de renforcer la sûreté et la sécurité des matières et installations nucléaires - comme l &apos; a montré le terrible accident de la centrale nucléaire de Tchernobyl, en Ukraine, il y a vingt-quatre ans.