President Volodymyr Zelensky publicly faulted the American offer, which is tied to continued aid, because it did not include security guarantees.

Ukraine is hoping to reach a deal on a counter-offer, but the opening proposal rippled through European diplomatic circles not only for its audacity but because the war-ravaged country appears ready to play ball.

By Jonathan Landay, Tom Balmforth and Dan Peleschuk MUNICH (Reuters) -President Volodymyr Zelenskiy said on Saturday a draft minerals deal with Washington did not contain the security provisions that Kyiv needed and three sources said the United States had proposed taking ownership of 50% of Ukraine's critical minerals.