"During the last two days we have seen the same thing that OSCE is reporting. We have seen convoys of Russian equipment, primarily Russian tanks, Russian artillery, Russian air defense systems and Russian combat troops entering into Ukraine," US General Philip Breedlove said in Sofia, Censor.NET reports citing AFP.
He noted that NATO does "not have a good picture at this time of how many. We agree that there are multiple columns that we have seen."
Read also: OSCE Mission Registered 43 Trucks Moving Artillery Mounts in Donetsk Downtown
Observers from the Organisation for Security and Cooperation in Europe (OSCE) reported on Tuesday seeing a convoy of 43 unmarked military trucks - five heavy artillery pieces towing Howitzer and another five multi-launch rocket systems - travelling into the rebel stronghold of Donetsk.