A court in Moscow has sentenced five Chechen men found guilty of killing prominent Russian politician Boris Nemtsov in early 2015 to 11 to 20 years in prison.

Axar.az reports citing RT.

In late June, the jury found that investigators had proved that in late September 2014, the five suspects agreed to kill Nemtsov in exchange for 15 million rubles (currently $US250,000). Investigators named the person who ordered the hit and masterminded the murder as Ruslan Mukhudinov. He has been on the international wanted list since November 2015 and is still at large.

The jury’s verdict in the case was postponed several times, as a large amount of evidence had to be studied. Two of the jurors were released of their duties.

The passing of the verdict was delayed twice this week because the jury became fatigued while carrying out a final review of the extensive amount of documents in the case.

Boris Nemtsov, a veteran politician and key opposition figure, was shot dead on the Bolshoy Moskvoretsky Bridge, near the Kremlin, in February 2015.

The assassination resulted in a demonstration of thousands in Moscow, demanding the killers be found and brought to justice.

Russian President Vladimir Putin personally promised in a speech that everything would be done to bring those responsible for the killing to justice.

In March 2015, Russian police arrested five suspects, including two suspected hit men. One of them, Zaur Dadaev, had reportedly confessed his involvement in the murder and said it was revenge for Nemtsov’s “negative comments on Muslims and Islam.”