Russian Deputy Foreign Minister Gennady Gatilov says the ministry has facts of mass shipments of western weapons to Syrian rebels, RBC reports.
UN observers have been noting presence of advanced weapons in rebel forces. But their source is unknown.
Russian Foreign Minister Sergey Lavrov accused the US of arming Syrian opposition. Washington denied all accusations.
The Sunday Times reports that Libya is shipping weapons, including Russian weapons Muammar Gaddafi acquired, to Syrian opposition. They include the Igla missile complexes. Weapons are shipped through Tripoli.
