Ukraine said on Wednesday it had detained a Chinese father and son, both suspected of spying on its prized Neptune anti-ship missile programme, a key part of Kyiv's growing domestic arms industry critical to its defence against Russian invaders.

Ukrainian President Volodymyr Zelensky has accused China of deeper involvement in Russia's invasion than it is letting on. Beijing has repeatedly said China is not a party to or participant in the Ukraine war, and does not provide weapons to either side.

After President Trump's criticism of Putin, Russia launches major attack on Ukraine, in heaviest single bombardment of the war. Also: Taiwan begins biggest war games, and what do emojis say about us?

Donald Trump has said he will make a “major statement” about Russia on Monday after he confirmed the United States would supply weapons to Ukraine via Nato, with the alliance covering the full cost.“I think I’ll have a major statement to make on Russia on Monday,