"We demand that Vyshinsky be immediately released and that all charges be dropped," the statement read.
Vyshinsky had earlier renounced Ukrainian citizenship. According to the Ukrainian security service, the journalist also has Russian citizenship.
Vyshinsky's lawyer has said that petition on renunciation of citizenship will be submitted to the Ukrainian president’s administration on Monday.
Rossiya Segodnya Director General Dmitry Kiselev has demanded that the Ukrainian authorities free Vyshinsky immediately and end their persecution of the media. Margarita Simonyan, the editor-in-chief of Rossiya Segodnya news agency and RT broadcaster, has stated that she thought what was happening in Ukraine was Kiev’s "revenge" for the recently opened Crimea Bridge. She further noted that RIA Novosti Ukraine was not legally linked to Rossiya Segodnya, but was its media partner.
Moscow Urges Proper Int'l Reaction to SBU Attempt to Recruit RIA Novosti Correspondent
The Russian Foreign Ministry has also called on the international community on Sunday to react properly to the attempt of the Ukrainian Security Service (SBU) to recruit RIA Novosti correspondent Irina Vysokovich.
"We are calling on the international institutions and community to react properly to the situation around I. Vysokovich," the statement read.
READ MORE: Ukraine's Security Service Tried to Recruit Journalist Covering Vyshinsky Trial
Vysokovich, a Ukrainian citizen, who has been covering the trial of RIA Novosti Ukraine news website head Kirill Vyshinsky, said on Saturday that the SBU had tried to recruit her, forcing to sign a document on her readiness to cooperate with the security service and provide information about the employees of the media outlet.
Rossiya Segodnya International Information Agency’s Director General Dmitry Kiselev called the SBU attempt to recruit the RIA Novosti correspondent yet another example of Kiev’s s disrespectful attitude to journalists.