Attacks also reported overnight in Zaporizhzhia, Kyiv and Mykolaiv as Zelenskyy says he fears Ukraine will become a ‘testing ground’ for Russian weapons

Dan Sabbagh is the Guardian’s defence and security editor

Russia and other adversaries of the UK are trying to use artificial intelligence to enhance cyber-attacks against the nation’s infrastructure, the cabinet minister Pat McFadden will warn at a Nato conference in London on Monday.