SBU exposes Russian spy on Ukraine-Russia commission to monitor the ceasefire in Donbas – Col. Vladimir Cheban, SBU reports June 22.
The Russian handed over sensitive information on the schedule of OSCE drone flights to rebels.
Based on this information the Russian/rebel troops could hide their firing positions from the OSCE observers as well as their large-caliber artillery positions.
SBU arrested the colonel and extradited him, banning entry in Ukraine for 5 years.
SBU provided the tapes with colonel’s recorded phone communications with the rebels.