OSCE Special Monitoring Mission was attaced in Katerinovka (a village under the control of Ukrainian army). That fact was mentioned in an official report of OSCE SMM on Donbass.
According to the official report SMM came to government-controlled Katerinovka following up previously reported cases of UAF presence within the line of demorcation. Near one of the buildings the SMM spotted some movement and in a few minutes a man wearing a balaclava and military uniform with a brand new emblem of «Novorossyia» came out of the house. He said that he was from Pervomaysk and he was not allowed to talk to them. Latter two another men appeared on scene. In a few minutes the SMM heared automatic tire coming from behind the house.
The SMM poined out that those men couldn’t be from Army of Novorossiya. Since January the SMM has several times observed UAF presence inside the line of demarcation and occupying civilian houses in Katerinovka too.