Даже ОБСЕ, которое обычно покрывает террористов, про мину не говорит: http://www.osce.org/ukraine-smm/134636 "At approximately 14:35hrs on 13 January the regional traffic police confirmed to the SMM that a Grad rocket struck close to a civilian bus when it stopped at a Ukrainian Armed Forces checkpoint approximately 2km north of Volnovakha (35km south-west of Donetsk). The SMM arrived at the location of the incident at 17:45hrs and witnessed the removal of two of the dead passengers from the bus. The bus had shrapnel damage consistent with a nearby rocket impact, estimated by the SMM to be 12-15 meters from the side of the bus. "