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US talking to European allies for more Russian sanctions

US Vice President Joe Biden has told Ukraine President Petro Poroshenko that the United States was working with European leaders on further sanctions on Russia, over the escalation of the conflict in Ukraine.

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Ukraine president accuses Russian army of aiding rebels

The Ukrainian president has again accused Russian army officers of fighting alongside pro-Moscow separatists in the east of the country.

Ukrainian President Petro Poroshenko. Credit: REUTERS/Gleb Garanich

Petro Poroshenko said: "Russian staff officers are taking part in military operations against Ukrainian forces."

The war of words between Kiev and Moscow followed a weekend of intense fighting, in which Ukrainian forces say they inflicted heavy losses on pro-Russian rebels.

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