The most efficient format of the talks on unblocking the transport communications in the South Caucasus is a trilateral working group led by the deputy prime ministers of Russia, Armenia and Azerbaijan, Russian Foreign Ministry spokeswoman Maria Zakharova told a weekly briefing on Thursday.

“Eight meetings in this format have already been held and all sides highly appreciate the work of the working group,” she said.

"We believe it is right to adhere to the statements and steps that contribute to the implementation of trilateral agreements to unblock all economic and transport links in the Transcaucasus," the spokeswoman noted.