Preparations are under way in Kyiv ahead of planned mass protests on Sunday.
The Ukranian opposition plan a large rally in the city against President Viktor Yanukovich’s decision to scrap a trade deal with the EU and steer the country closer to Russia.
US Senators John McCain and Chris Murphy are expected to attend. The United States has condemned the harsh measures against demonstrators during weeks of protests.
Government supporters are also expected to gather in support of the president on Sunday.
On Friday, Yanukovich met the opposition for round table talks – the first time since the mass demonstrations began in Kyiv.
Demands for the resignation of the government have been dismissed.
Sunday’s protesters will gather at Independence Square and while Yanukovich supporters will come together at nearby European Square making for a tense situation in the Ukranian capital.