September 29, 2014. Heads of states - participants in the Fourth Caspian summit in Astrakhan President of Turkmenistan Gurbanguly Berdimuhamedow, President of Iran Hassan Rouhani, President of Kazakhstan Nursultan Nazarbayev, President of Azerbaijan Ilham Aliyev and President of Russia Vladimir Putin, from left, at a ceremony of releasing sturgeon fry during their promenade along the Volga River embankment.