President of Ukraine Volodymyr Zelensky said that Vladimir Tsemakh, a witness in the case of Boeing MH17 flight, downed in the Donbass in 2014, was questioned before being sent to Russia.
Zelensky made a corresponding statement speaking to reporters at the Boryspil airport.
“Interrogated before returning and not only that. I will not name the European leaders with whom we discussed time for all investigative actions. We have done it all. All that we were asked about,” Zelensky said, adding that he was afraid that because of this the exchange could be derailed.