Ukraine's President Volodymr Zelensky has accused Russia of "doing everything it can" to prevent a meeting with Vladimir Putin to try to end the war. US President Donald Trump has sought to bring the two leaders together, but he said on Friday "that's like oil and vinegar... they don't get along too well".

Potential security guarantees could end the three-year war between Ukraine and Russia, Ukrainian President Volodymyr Zelensky announced on Saturday afternoon.

The Russian invasion of Ukraine has had a profoundly negative impact on Ukraine, as well as on the global food, financial, and energy markets.