Azerbaijan Deputy Foreign Minister Kgalaf Khalafev said on Thursday that the Iranian, Turkish and Azeri foreign Ministers will hold a tripartite meeting in Nakhichevan autonomous Republic soon.He made the remark at a press conference in Astana, Kazakhstan, where five Caspian Sea littoral countries are holding talks on determination of a legal regime for the sea . “The three countries are negotiating to set a date for the tripartite meeting in Astana,” Khalafev said.