The United States pledged millions of dollars in additional aid to Ukraine, Moldova and Georgia on Saturday, deepening American support to the Western-leaning countries on Russia's border.
Vice-president Joe Biden announced the extra aid, which must be approved by Congress, during a visit to Kiev for the inauguration of Ukrainian President Petro Poroshenko.
Washington pledged $48m to Ukraine, $8m to Moldova and $5m to Georgia after Biden met the presidents of the three countries.
Secretary of state John Kerry, meanwhile, said on Saturday he was hoping for steps to ease tensions in Ukraine now that the new president has been sworn in.
Both Moldova and Georgia are pursuing association agreements with the European Union amid a regional crisis over Russia's actions in Ukraine.