As reported by Censor.NET citing BBC, this was stated in a spot report by the OSCE SMM.
According to the monitors, the armed "DPR" members pointed guns at SMM in a very aggressive manner near "DPR"-controlled Lukove village (72 km south of Donetsk) July 29. One "DPR" member made a "cut throat" sign to the SMM and took photographs of both SMM vehicles and the drivers.
The OSCE SMM insists that those involved in violence against members of the mission should be held accountable. The observers also expressed desire to meet with militants' chieftain Alexander Zakharchenko "to verify the steps that have been taken in response to this incident."
However, according to the OSCE SMM, the "DPR" terrorists' leader continues evading the meeting.