The Fourth Caspian Summit was held in Astrakhan. Following the meeting, the leaders of the Caspian Five – Vladimir Putin, President of Azerbaijan Ilham Aliyev, President of Iran Hassan Rouhani, President of Kazakhstan Nursultan Nazarbayev and President of Turkmenistan Gurbanguly Berdimuhamedov – signed a joint statement and adopted a final communique. Several cooperation agreements were signed in the leaders’ presence. In an informal meeting during the summit, Mr Putin, Mr Aliyev, Mr Rouhani, Mr Nazarbayev and Mr Berdimuhamedov took a walk along the Volga embankment and released young sturgeons into the river. The President of Russia had individual meetings with heads of Caspian states on the sidelines of the summit.