Reports about it RIA News.
It is noted that Poroshenko came out to journalists with his lawyer after the interrogation, which lasted more than an hour.
July 25 Poroshenko came to the building of the GDI for questioning. At the same time, in the morning of the same day, the bureau stated that they were forced to postpone the investigative measures to August 8, as the lawyer of the ex-president asked for it “due to certain reasons”. As a result, the interrogation took place on the 25th.
On July 17, Roman Trub, director of the State registry office, stated that the bureau opened 11 criminal cases against Poroshenko and other high-ranking officials.
Details - in the material RT.