The Russian Prosecutor General’s Office has asked Ukraine to extradite Adam Osmayev, suspected of involvement in plotting an assassination attempt against Russian Prime Minister Vladimir Putin, the office said on Thursday, according to RIA Novosti.

After weeks of interrogation, the plotters confessed they were planning to assassinate Putin in Moscow soon after the March 4 presidential elections, Russia`s Channel One television reported on Monday.

Osmayev and two other conspirators were detained in the Ukrainian port city of Odessa in early January following an explosion in their rented apartment. They have since provided information about the plot to the Ukrainian and Russian security services.

The TV report, featuring Osmayev `s interrogation, says that the militant, who had been on the international wanted list since 2007, is cooperating with investigators in hopes of avoiding extradition to Russia.