British Prime Minister Keir Starmer will be joined by the Ukrainian president at Downing Street this morning, as Europe braces for the outcome of Donald Trump's face-to-face discussions with his Russian counterpart tomorrow.

The Prime Minister's meeting with Volodymyr Zelensky comes after he said Britain stands ready to "increase pressure" on Russia if necessary.

European leaders said a call with President Donald Trump was unifying and that he agreed Ukraine should be part of any negotiations over territory, but some still worry he could give in to Russian President Vladimir Putin.