TEMPO.CO, Jakarta - Russian rocket launchers have been filmed operating close to the border with Ukraine, as reported by Sky News.
It came as Russia's foreign minister Sergei Lavrov reiterated to the German foreign minister in a phone call that Ukraine's use of the army must be halted in its country.
Earlier Mr Lavrov had warned Kiev that it would face justice for a "bloody crime" in eastern Ukraine, where the government has been acting against rebels.
"They (Kiev) are waging a war on their own people. This is a bloody crime, and those who pushed the army to do that will pay, I am sure, and will face justice," Mr Lavrov told a meeting of diplomats.
The massing of Russia's forces on its border prompted Ukrainian Prime Minister Arseniy Yatsenyuk to accuse Russia of wanting to start "a third world war".
Mr Yatsenyuk said that Russia wanted to occupy Ukraine, creating a conflict that would spread to the rest of Europe.
He said: "The world has not yet forgotten the second world war, but Russia is already keen on starting a third world war.
"All responsibility for aggression on Ukrainian territory and for undermining international security and stability rests with the leadership of the Russian Federation."
SKY NEWS