International tension over the situation in eastern Ukraine is mounting again.

Russian Foreign Minister Sergei Lavrov has accused Ukraine of breaking an agreement reached in Geneva last week, aimed at averting a wider conflict.

A shooting at a checkpoint in the east of the country left three people dead yesterday.

Pro-Russian separatists claim they came under attack in the city of Slavyansk.

It comes as US Vice president Joe Biden visits Ukraine to meet with the interim prime minister and president.

Reporter Katie Stallard says the situation in Eastern Ukraine is tense: