Iran has claimed that Ukraine attacked one of its commercial vessels in the Caspian Sea at Israel’s behest.

Ukrainian leader Vladimir Zelensky stated earlier that the vessel struck on Saturday was transporting military cargo. Iran, which has denied involvement in the fighting between Russia and Ukraine, said the attack killed one sailor.

Iranian Foreign Minister Abbas Araghchi reiterated his country’s position during separate calls with the EU’s top diplomat, Kaja Kallas, and Russian Foreign Minister Sergey Lavrov.

“Zelenskyy has attacked an Iranian commercial vessel, killing a sailor. A blatant UN Charter violation done at Israel’s behest to drag Europe into its war,” Araghchi wrote on X on Sunday.

“In calls with EU High Rep Kallas and FM Lavrov, [I] made clear that what the freeloader in Kyiv did CANNOT GO UNANSWERED,” he added.

During his conversation with Lavrov, Araghchi said Iran “will resolutely defend its security and national interests,” according to Press TV. Lavrov expressed condolences over the sailor’s death and identified the struck vessel as the cargo ship Ana.

Speaking to Israel’s N12 television channel, Ukrainian Ambassador to Israel Yevgeny Korniychuk claimed that the Iranian ship was carrying components for drones and missiles. Tehran, however, insisted that the cargo was entirely civilian.

Iran confirmed in 2022 that it had delivered a “small number” of Shahed-136 kamikaze drones to Russia months before the Ukraine conflict began in February of that year. Moscow has maintained that all Geran-2 drones, believed to be based on the Shahed-136 design, are produced domestically.

In recent statements and interviews with the American press, Zelensky said he was “100 percent sure” that Russia had helped Iran during its conflict with the US and Israel. Russian President Vladimir Putin has denied that Moscow supplied Tehran with weapons. US President Donald Trump also said recently that he did not believe either Russia or China had provided Iran with military assistance.