Pope Francis calls for "to avert the risk of a nuclear disaster" in Ukraine, as the conflict started six months ago, denouncing once again the "madness of war". "For six months now, the Ukrainian people have been suffering from the horror of war," the Pope said, calling for "concrete steps to be taken to end the war and avert the risk of a nuclear disaster in Zaporizhia". Several countries have expressed fears of a nuclear disaster at Europe's largest nuclear power plant, occupied by the Russian army in the south of the country and the target of recurrent bombings. IMAGES AND SOUNDBITES