According to the OSCE, Ukrainian special forces have disguised themselves as OSCE monitors.
The report from OSCE states that: "In Avdiivka the SMM observed a white-coloured, four-door civilian sport utility vehicle driven by men in military-type uniforms, with decals on the front doors mimicking the colours and design of the OSCE SMM logo, moving east on Vorobiova Street in front of the building where the SMM camera is located. The SMM saw a similar vehicle in the same area on 4 March." bit.ly/2ox7mv5, . It makes no mention of who was in the vehicles.