Russia Reportedly Ships Arms to Iran via Caspian Sea After Strikes

Russia Reportedly Resupplying Iran

Russia is transporting ammunition, drone components, explosives, and parts associated with missiles to Iran through the Caspian Sea, according to an Aug. 17 NBC News report citing a European government document and an unnamed Western official who verified it.

The shipments are intended to replenish Iranian weapons stockpiles following U.S. and Israeli strikes, the report said. More than two dozen Russian vessels reportedly traveled to Iran’s port of Amirabad, though the quantities and value of the cargo remain unclear.

The Kremlin has rejected allegations that it is supplying Iran, characterizing such reports as “fake news.”

Ships and Cargo

The reported deliveries include small-arms ammunition, drone components and TNT, as well as components related to missiles and other explosives. Many of the vessels involved are under U.S. or European sanctions, according to the report.

The ships were allegedly owned by MG-FLOT, a maritime company placed under Western sanctions in 2024. The Caspian Sea provides a direct maritime route between Russia and Iran that does not require passage through third-country waters.

Jim Lamson, a former CIA analyst, told NBC News that Iran’s reported procurement of drone parts and ammunition could indicate that U.S. and Israeli strikes damaged its domestic production capacity.

“Iran’s procurement of drone components and small arms ammunition from Russia strongly suggests that Israeli and US military strikes on Iran’s facilities that produce these items have degraded Iran’s domestic capability to produce them,” Lamson said.

Ukrainian Strike in the Caspian Sea

Ukraine’s Security Service, or SBU, said Ukrainian forces struck an Iranian ship on July 25 while it was transporting military cargo between Iran and Russia in the Caspian Sea.

Iran’s Foreign Ministry disputed that characterization, saying the target was a commercial vessel. Tehran reported that one sailor was killed and another injured, and described the strike as “an act of aggression that could further inflame and expand the flames of war.”

Ukrainian Foreign Minister Andrii Sybiha held what he called a “frank conversation” with Iranian Foreign Minister Abbas Araghchi on July 28, following Tehran’s condemnation of the attack.

Expanding Military Cooperation

Russia and Iran have strengthened military cooperation as Moscow faces international isolation over its war against Ukraine. Iran has supplied Russia with military equipment and drones, including the Iranian-designed Shahed platform.

Russia has since developed modified Shahed-type attack drones and regularly uses large numbers of them in strikes against Ukraine, including attacks affecting civilian areas. The reported flow of equipment to Iran would represent support moving in the opposite direction after years of Iranian assistance to Russia.

Russia has also been accused of providing Iran with upgraded drones and other assistance intended to improve Tehran’s ability to strike U.S. targets. Moscow denies those claims.

U.S. Response

President Donald Trump has downplayed reports of Russian support for Iran. He said Russian President Vladimir Putin had assured him that Moscow was not selling weapons to Tehran.

Trump also said any Russian assistance had been “very unimpactful” after Ukrainian President Volodymyr Zelensky accused Moscow of sharing satellite imagery of U.S. bases with Iran. No independently confirmed total for the reported Russian shipments has been disclosed.