An online meeting of world leaders has just ended here in London, hosted by Prime Minister Sir Keir Starmer, to discuss concrete commitments to strengthen Ukraine's security.

Also on the programme: huge crowds are demonstrating in the centre of Serbia's capital denouncing government corruption; and can a rocket rescue two astronauts who have been unable to leave the International Space Station?

(Photo: UK Prime Minister Keir Starmer Holds a Press Conference On Support For Ukraine UK prime minister hosts virtual call with international leaders to discuss Ukraine. Credit: EPA-EFE/REX/Shutterstock)