Iran summons Ukraine’s diplomats after an incident in the Caspian Sea in which a Ukrainian attack reportedly hits an Iranian commercial vessel. Iranian officials say the attack kills at least one sailor and injures another. Tehran condemns the strike and says it violates the UN Charter. Iran’s Foreign Ministry says Foreign Minister Abbas Araghchi raises the matter in a phone call with the European Union’s foreign policy chief and urges the international community, including the UN Security Council, to condemn the attack.

Ukraine, according to reporting, says the strike targets Russian vessels that it says carry Iran-linked military cargo. Ukrainian President Volodymyr Zelenskyy also says Russia is assisting Iran’s military activities in the Middle East, linking the reported cargo to broader military support.

Iran’s ministry also warns in a separate statement that Ukraine’s actions reflect hostility toward Iran. The incident further escalates diplomatic tensions between Iran and Ukraine, while Ukraine frames the operation as part of efforts to disrupt military supplies linked to Iran and Russia.