
Ukraine is preparing to present a revised peace plan to the White House as it seeks to avoid territorial concessions to Russia.
Kiev is ready to propose alternatives to the US after President Volodymyr Zelensky again ruled out handing over territories, saying he "had no right" to do so under Ukrainian or international law.
He made the comments as he met with European and NATO leaders on Monday, part of a collective effort to prevent the US from backing a peace deal that includes major concessions for Ukraine and that allies fear would leave it vulnerable to a future invasion.
Meanwhile, the city of Sumy in northwestern Ukraine was left without electricity overnight after a Russian drone attack.
Zelensky's diplomatic tour of Europe comes after several days of intense talks between American and Ukrainian negotiators over the weekend, which failed to produce a deal that Kiev could agree to.