As reported by Censor.NET citing Interfax, this was announced by Kremlin press secretary Dmitry Peskov.
"We believe that any of the already voiced allegations of a notorious Russian trace are absurd," Peskov told reporters.
He said the incident proved the Ukrainian side could not secure the safety of Voronenkov.
"We hope that the killer and those behind these actions will be found," Peskov added.
Russian President Vladimir Putin was informed about the murder of ex-deputy Voronenkov in Kyiv earlier today.
Denys Voronenkov was shot dead in downtown Kyiv March 23. The hitman also managed to injure Voronenkov's bodyguard. The incident took place outside Kyiv's Premier Palace Hotel.
Voronenkov was a witness in the treason case against fugitive Ukrainian president Viktor Yanukovych. In his recent interview with Censor.NET Voronenkov said that Yanukovych was a traitor "who was involved in mass slaughter, who had fled to the foreign country and urged foreign troops to slay his people. I believe this person should have received not asylum but a fair trial in Russia."
Related materials: Voronenkov assassinated
Voronenkov’s assassination to have no impact on probe into treason charges against Yanukovych, - military prosecutor's office(0)