奥巴马威胁将对俄实施新制裁

周四，美国总统奥巴马呼吁欧盟及其他合作伙伴，若俄罗斯采取行动，加剧目前乌克兰的危机的话，就对俄实行新的制裁。

WASHINGTON - US president Barack Obama on Thursday urged European and other allies to be prepared to join US in imposing additional sanctions on Russia if it "escalates the crisis in Ukraine."

In a phone conversation with German Chancellor Angela Merkel, Obama expressed "concerns" over situation in eastern Ukraine, where "separatists apparently with support from Moscow continue an orchestrated campaign of incitement and sabotage to destabilize Ukraine."

The pair also repeated the call for Russia to move its troops back from the border region.

They also discussed issues about the upcoming meeting of the Ukrainian, Russian, and US foreign ministers and EU High Representative, according to a White House statement.

The United States has accused Russian agents of stirring unrest in eastern Ukraine to use it as a pretext for military intervention. Russia has rejected such an accusation.