Washington does not anticipate a breakthrough with Russia over the Ukraine crisis at tomorrow's Geneva conference, Reuters reported, citing unnamed US officials.
The officials said it was reasonable to assume that more sanctions would be imposed against Russia if there was no progress at the meeting.
They believe Russian President Vladimir Putin envisions a federalist Ukraine that would allow Moscow to veto its decisions.
Tensions remain high in eastern Ukraine after at least three died in a day of shooting during what was supposed to be an Easter truce.
In an exclusive interview with NBC News, the Ukrainian Prime Minister warns of the dangers of unchecked Russian expansion and aggression.
Russia, the US and the EU say that all sides have agreed to steps to "de-escalate" the crisis in Ukraine at talks in Geneva.