Dmytro Yarosh, the leader of the Ukrainian radical organization Right Sector, against whom Russia has opened a criminal case on charges of calls for terrorism, has been declared internationally wanted and indicted in absentia, Russian Investigative Committee spokesman Vladimir Markin said.

"Yarosh has been declared internationally wanted through Interpol channels, and a directive on indicting him in absentia has been issued," Markin told Interfax on Wednesday.

The Investigative Committee has charged Yarosh with "publicly calling for terrorist and extremist activities with the use of media outlets," Markin said.

"In the investigation's opinion, head of the ultra-nationalistic Ukrainian organization Right Sector Dmytro Yarosh is publicly encouraging anti-Russian forces to resort to extremist actions and terror on Russian territory," Markin said.

Any individual committing or calling for committing grave crimes on Russian territory or against Russian citizens "will certainly be held criminally liable in line with international law and Russian law, and this will be done irrespective of where they are or what citizenship they have, as soon as the matter concerns the protection of legitimate interests of Russian citizens and the constitutional foundations of our state," he said.

"The investigation is planning in the near future to ask to take Yarosh into custody in absentia as a restrictive measure," he said.

Markin had announced the opening of a criminal case against Yarosh on Monday.

If found guilty, Yarosh may face up to 7 years in prison in Russia.