MIZAN, ISNA | Hamid Forootan: The Caspian Sea Legal Regime Convention was signed by the five littoral countries in Kazakhstan. The convention was signed by Presidents of the Islamic Republic of Iran, Russian Kazakhstan, Azerbaijan and Turkmenistan on Sunday in Aktau, Kazakhstan after the Fifth Caspian Sea Littoral States Summit. In the ceremony of signing of the convention that was held after the summit, President Hassan Rouhani of the Islamic Republic of Iran, President Vladimir Putin of the Russian Federating, President Nursultan Nazarbayev of the Republic of Kazakhstan, President Ilham Aliyev of the Republic of Azerbaijan, and President Gurbanguly Berdimuhamedow of the Republic of Turkmenistan.