RIA Novosti Ukraine Editor-in-Chief Kirill Vyshinsky's appeal hearing on his detention was postponed until August 20 by Kiev's Court of Appeals on Tuesday.
Speaking at the court, Vyshinsky said that speculation about a letter that his mother had written to Ukrainian President Volodymyr Zelenskiy "is a pretty mean act."
"In this letter there was no request to release me. In this letter, my mother talked about her life during the last year," the journalist said.
"She expected that the story about her life, the general situation and understanding that I'm not guilty of anything, will allow the country's leadership to take part in my fate," added Vyshinsky.
In July Vyshinsky's detention was prolonged until September 19.
The journalist was detained in Kiev on May 15, 2018. He is being held on suspicion of treason, which carries a prison sentence of up to 15 years.
Vyshinsky denies all the charges and has accused the prosecution of "political games" in order to keep him behind bars.