Ukraine's Poroshenko reveals proof of Russian incursion

Petro Poroshenko, Ukraine's president, has been long claiming that Russia is fuelling the fights in eastern Ukraine by supplying rebels with weaponry and troops.

On the other side, Russian President Vladimir Putin denied multiple times being involved in such actions and clearly stated that his support goes to Poroshenko.

Now he might have proof to back up his claims after a video appeared on Thursday, showing rebel troops in tanks and other military vehicles, crossing the border from Russia into Ukraine.

Poroshenko's next move was to call both President Putin and EU chief Jose Manuel Baroso to express his unrest. He classified the situation as 'unacceptable'.

Baroso tried to calm down the situation: 'He conveyed to me his extreme concern with ongoing armed unrest in eastern Ukraine and also today’s incident with Russian tanks that according to Ukrainian authorities have crossed today the Ukrainian border,' he reported.

However, the video in question still needs to be verified until any further accusations are made.