Ukrainian President Volodymyr Zelenskiy will meet British Prime Minister Andy Burnham in London on Wednesday. Britain pledged £45 million in surface-to-air missiles to support Ukraine. Burnham said, "We are with you for as long as it takes." The UK also called for allies to keep economic pressure on Moscow today.

LONDON, Oct 13 (Reuters) - Ukrainian President Volodymyr Zelenskiy will meet British Prime Minister Andy Burnham in London on Wednesday as ​Britain looks to reaffirm its support for Ukraine, ‌including with the promise of a new package of surface-to-air missiles.

The meeting comes at a difficult time for Zelenskiy. US President Donald ​Trump said at the weekend he should be replaced ​as Ukraine's leader, days after cutting a deal ⁠with Moscow to lift sanctions on Russian diesel exports.

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Britain has ​said it does not support the US-Russia diesel deal, and ​called for allies to keep up the economic pressure on Moscow.

"My message to the Ukrainian people could not be clearer, we are ​with you for as long as it takes, and ​we will go further and faster in our support to back your ‌courageous ⁠fight for peace in Europe," Burnham said in a statement before the meeting.

Burnham said backing for Ukraine was vital to keeping people in Britain safe and pledged further ​military support.

He announced ​the planned ⁠delivery of £45 million ($59.60 million) of surface-to-air missiles used to target jet-powered Russian drones, with £10 ​million of that package fast-tracked to meet an ​urgent ⁠need in Ukraine.

Burnham has asked officials to draw up further sanctions, military aid, and fiscal support, and his foreign and ⁠finance ​ministers have been lobbying allies to ​follow Britain in banning maritime services that support Russian liquefied natural gas ​exports.

($1 = 0.7551 pounds)

Reporting by William James; Editing by Aidan Lewis