MOSCOW, October 28. /TASS/. Russian Foreign Minister Sergey Lavrov will meet with his US, Saudi Arabian and Turkish counterparts in Vienna on October 29, a source at the Russian Foreign Ministry has told TASS.
"A meeting of Russian, US, Turkish and Saudi Arabian foreign ministers is due in Vienna on October 29. On October 30 the list of participants will be expanded," the source said.
Earlier on Wednesday the Russian Foreign Ministry said the format of Vienna meetings was still under consideration. At this point it remains unclear whether Iran has accepted the invitation.