The United States and Ukraine pressed on with talks in Switzerland on Monday to come up with a mutually acceptable peace plan, after agreeing to modify a U.S. proposal that Kyiv and its European allies saw as a Kremlin wish list.

The White House and Kyiv said in a joint statement they had drafted a "refined peace framework" after a first day of talks in Geneva on Sunday, though they did not provide specifics.

The United States blindsided Kyiv and European countries with a 28-point peace plan last week, giving Ukraine until Thursday to agree to a framework to end Europe's deadliest war since the Second World War.

After the talks on Sunday, no public statement was released on how the revised plan would handle contentious issues such as how to guarantee Ukraine's security against future

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