The questioning of Viktor Yanukovych is scheduled for 13:00 Kyiv time.
In addition to the former head of state, the court will question former commander of the troops of the Ukrainian Interior Ministry Stanislav Shulyak.
Both men will testify from the Rostov regional court in Russia via a video conference.
Read alsoYanukovych to hold presser Nov 25 following questioning via video conference - mediaYanukovych and Shulyak are witnesses in the case of five former Berkut riot police officers, who are accused of murdering the Maidan activists in February 2014.
Earlier, the Prosecutor in the case Oleksiy Donskoy did not rule out technical problems with the video link during interrogation.
Yanukovych's lawyer Vitaliy Serdiuk said that Viktor Yanukovych had been expected to testify via a video conference in a criminal case of the five former Berkut riot police officers on November 25.
