Pavlo Klimkin said in an interview with The Associated Press that Russian military and special forces are "in full command" in the rebel-controlled eastern regions of Donetsk and Luhansk.
He cited Ukraine's capture a few days ago of a large Russian truck filled with weapons that was driven by a Russian special forces officer as one of many examples of Russia's presence. Russia has scoffed at the allegations and pro-Russia rebels dismissed the Ukrainian claim as a fabrication.
Klimkin said the rebels are persisting only because of Russian weaponry and military personnel crossing the border into eastern areas which the government doesn't control. He said international monitors from the Organization for Security and Cooperation in Europe must have access to all areas in Donetsk and Luhansk. Now, he said, they don't have access to up to 50 percent of the territory in the coal mining region.