World leaders on Saturday expressed concern over a US peace plan for Ukraine seen as favoring Russia, saying it needs “additional work” as they scramble a coordinated response to the proposal.

The gathering in South Africa comes as US President Donald Trump gives Ukraine until Thursday to agree to the deal.

Ukrainian officials are set to meet with US counterparts in Geneva on November 23 to discuss President Donald Trump’s 28-point peace plan -- one that Kyiv’s allies have said is highly tilted in Russia’s favor.

President Donald Trump has given Ukraine less than a week to accept his plan to end the war with Russia, which is widely seen as favoring Moscow. Follow for live updates.

European leaders are hoping to bolster the controversial plan, which Ukraine's Volodymyr Zelenskyy said was forcing his country to choose between "dignity" and a "key partner."

European leaders are set to meet in South Africa to discuss alternatives to a U.S. plan to end Russia's war in Ukraine as a top Ukrainian delegation prepared for direct talks with Washington.

The plan includes several red lines for Ukraine, including a massive reduction of its army and ceding territory to Russia that it has not yet conquered militarily.