Ahead of Wednesday's session of Prime Minister's Questions, the entire Commons chamber stood to applaud Vadym Prystaiko as he sat in the gallery to observe proceedings.

Addressing Mr Prystaiko after MPs had ended their applause, Commons Speaker Sir Lindsay Hoyle noted - to some laughter - that MPs "generally do not allow applause in the chamber".

"But I think on this occasion the House quite rightly want to demonstrate our respect and support for your country and its people at this most difficult time," Sir Lindsay added.

At the beginning of PMQs, Prime Minister Boris Johnson said Russian President Vladimir Putin had "gravely miscalculated" in his "abhorrent assault" on Ukraine.

"He has underestimated the extraordinary fortitude of the Ukrainian people and the unity and resolve of the free world in standing up to his barbarism," the PM told the Commons.