Volodymyr Zelensky has announced a surprised visit to London today to hold "substantive negotiations" with Rishi Sunak. 

The Ukrainian President said the UK "is a leader" in helping his country to expand its ground and air capabilities as it continues the fight against the Russian invasion and "this cooperation will continue today". 

Mr Zelensky tweeted: "Today – London. The UK is a leader when it comes to expanding our capabilities on the ground and in the air. This cooperation will continue today. 

"I will meet my friend Rishi. We will conduct substantive negotiations face-to-face and in delegations."

Mr Zelensky has engaged in a whistle stop tour of western Europe in recent days, meeting leaders in Italy, Germany and Paris before heading to London today.

The Ukrainian President was last in the UK for talks with Mr Sunak back in February of this year in what was his first visit to Britain since the start of the war. That trip also saw him deliver an address to both Houses of Parliament and meet King Charles. 

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