Ruslan Kravchenko prosecuting the treason case against Ukrainian ex-president Viktor Yanukovych, said the questions that the defense lawyers asked the incumbent president, Petro Poroshenko, as a witness, were not to the point, thus ruining their chance to put their questions to him.

"They did not put any pertinent questions, and they had no proof to disprove the evidence from the prosecution. They were simply afraid of putting questions to this witness, they disrupted the whole process and questioning procedure," Kravchenko told journalists after Poroshenko was questioned at the Obolonskyi district court on Wednesday.

Poroshenko was summoned as a witness of events in Crimea, to which he travelled on February 28, 2014, and so he should have been asked about relevant circumstances, the prosecutor said.

"As we all saw on the video, the then Verkhovna Rada deputy [Poroshenko] made the trip, without fearing, to perform his constitutional duties, unarmed, unguarded, to defend Ukrainian interests," Kravchenko said.

For his part, Prosecutor Maksym Krym stressed that the prosecution was in "collusion" neither with the court nor the presidential administration.

Earlier one of Yanukovych's lawyers, Ihor Fedorenko, said that at today's hearing the court had deflected the defense's questions for Poroshenko, which were answered when put to other witnesses. This represents a double standard, the lawyers said