Photo from UNIAN

"In the proceedings, one person has been detained and informed of suspicion of involvement in the commission of the crime," the prosecutor's office said in a statement.

As UNIAN reported earlier, on June 15, the SBU Security Service operatives, Alpha special force, and representatives of Kyiv Prosecutor's Office searched the house of Yaroslav Tarasenko in the city of Pavlohrad (Dnepropetrovsk region), an activist of "Pavlohrad Samooborona" [self-defense group].

Read alsoBefore Voronenkov’s murder FSB abducted, interrogated his driver in Belarus - widowFormer State Duma member Denis Voronenkov, who was expected to become an important witness in a treason trial against Russian-backed ex-president of Ukraine Viktor Yanukovych, was shot dead in the center of Kyiv on March 23, 2017. Voronenkov's bodyguard, who was wounded in the attack, also managed to hit the assassin with several shots as he returned fire. The killer later died amid surgery in a Kyiv hospital.

Voronenkov and his wife, the singer Maria Maksakova, who was also a Russian politician, were granted Ukrainian citizenship in December 2016 after fleeting Russia. A former Communist Party member in the Russian parliament, he feared for his safety after speaking out against Russian President Vladimir Putin.

Read alsoUkraine's chief prosecutor reveals some details about assassin of ex-Russian MPVoronenkov had been a vocal critic of the Kremlin's actions in Crimea and eastern Ukraine. He told Ukrainian media in an interview that Russia was going through a "pseudo-patriotic frenzy" similar to Nazi Germany.

Russia launched a smear campaign against Voronenkov last year, pinning US$ 5 million fraud charges on him and his wife.

The Russian Investigative Committee indicted Voronenkov in absentia and put him on the Russian federal wanted list. Voronenkov was accused of large-scale fraud, namely an illegal seizure of a building in the center of Moscow in 2011. The criminal case against him was opened in October 2011.