By the end Process_end of 2017 , OSCE observatory mission had accounted Cost for around 30,000 individuals in military-style dress Wearing crossing Motion_directional from Russia to Donbass just at two border checkpoints it was allowed Preventing_or_letting to monitor .

OSCE Special Monitoring Mission inspecting Scrutiny the place of incident assessed Testing from its study of five craters that they were caused Causation by `` rockets fired Use_firearm from a north-north-eastern direction '' .

Full-scale fighting Hostile_encounter erupted Process_start in early 1992. International mediation by several groups including the Organization for Security and Co-operation in Europe ( OSCE ) failed to bring Bringing an end Process_end resolution that both sides could work Employment with .

A Russian-brokered ceasefire was signed Sign_agreement in May 1994 , but regular peace talks Communication between Armenia and Azerbaijan mediated by the OSCE Minsk Group have failed to result in Causation a peace treaty .