Censor.NET reports citing Radio Svoboda.
The report, in particular, shows alleged cross-border traffic of the Russian troops into Eastern Ukraine.
Having analyzed satellite images, the team found at least 60 roads for illegal crossing of the Ukrainian border for Russian troops.
There is enough evidence of Russian forces' participation in the Donbas war during summer 2014, the Bellingcat team reports.
Ukraine and international community blame Moscow of supporting Donbas separatists, which Russia denies.
Related materials: Evidence of Russian aggression in Ukraine