U.S. Special Presidential Envoy for Ukraine and Russia Keith Kellogg said Saturday that peace plan for the two warring nations could come within days or weeks.

In an apparent rebuke of the rhetoric coming out of the Trump administration, Frostadóttir said she hoped to "get a clearer picture" of the White House's stance "sooner rather than later," adding: "It's also difficult for foreign leaders to be reacting constantly to unsure comments.