The Iranian chief executive wrapped up his visit to New York, where world leaders had gathered for the 69th annual session of the United Nations General Assembly.
During his UN trip, President Rouhani delivered a speech to the General Assembly, held several bilateral meetings with his foreign counterparts and heads of state, and gave interviews to foreign news agencies.
And in the Russian city of Astrakhan, Rouhani will attend the summit of the Caspian Sea littoral countries, including Iran, Russia, Azerbaijan, Kazakhstan and Turkmenistan.
The three previous meetings among the five nations were held in the capitals of Turkmenistan, Iran and Azerbaijan, respectively.
The Caspian Sea is the largest enclosed water body on earth by area, variously classed as the world’s largest lake or a full-fledged sea.
The Caspian Sea Convention will determine the territorial rights of littoral states as well as other matters related to the world’s largest landlocked body of water.
The Caspian Sea legal regime is based on two agreements signed between Iran and the former Union of Soviet Socialist Republics (USSR) in 1921 and 1940. The three new littoral states, established after the collapse of the Soviet Union, have not recognized the prior treaties, triggering a debate on the future status of the sea.