Delegations from Ukraine and the United States made progress during the first session of negotiations over a U.S.-proposed peace plan in Switzerland, head of the Ukrainian Presidential Office Andriy Yermak said Sunday.

"We have made very good progress and are moving forward towards a just and lasting peace," Yermak said on Telegram.

He added that the Ukrainian and U.S. delegations will continue working on joint proposals with the involvement of European partners.

Yermak emphasized that final decisions will be made by Ukrainian President Volodymyr Zelensky and U.S. President Donald Trump.

Earlier in the day, the Ukrainian and U.S. teams started their talks in Geneva to discuss possible parameters of a future peace agreement between Ukraine and Russia.