"The American side has not passed documentary evidence of participation by the accused in the warfare on Taliban's side to Russian investigation bodies," Mr. Fridinsky told the Rossia television channel.
He said these people had already been noticed by Russian law enforcement bodies.
"Most of them, even before they left Russia and were detained on other states' territory, were noticed by law enforcement bodies," Mr. Fridinsky said. "One of them in connection with the fact that he evaded military service, and another because he was suspected of preaching radical Islam; a third of was suspected of involvement with illegal armed formations." Seven Russians detained by Americans in Afghanistan and held later at the Guantanamo military base were passed to Russia in late February.