European and other Western leaders said on Saturday a U.S. peace plan was a basis for talks to end Russia's war in Ukraine but needed "additional work," part of Western efforts to eke out a better deal for Kyiv before a Thursday deadline, Reuters reported.

Meeting on the sidelines of a G20 summit, European and other Western leaders scrambled to come up with a coordinated response to U.S. President Donald Trump'sdemand for Ukraine to accept his 28-point peace plan with Russia by Thursday.