Iran's Foreign Minister Mohammad Javad Zarif will travel to Russia next week for a meeting of the countries that border the Caspian Sea, the official IRNA news agency reported.
"Mr Zarif will arrive in Russia on Tuesday,' for the gathering of the Caspian Sea littoral states, Iran's ambassador to Russia, Mehdi Sanaei, wrote on his Facebook page.
Since the formal dissolution of the Soviet Union, the nations that border the Caspian (Iran, Russia, Azerbaijan, Kazakhstan and Turkmenistan) have failed to agree on the sea's legal status.
Sanaei also said Iranian President Hassan Rouhani would visit Russia in September for a meeting of the heads of the Caspian sea countries.
Iran and Russia are close allies. In Syria's civil war both nations have supported President Bashar al-Assad's regime against mainly Sunni rebels.
