Iran has demanded compensation from Ukraine over a deadly strike on a cargo ship after Kiev’s foreign minister initially claimed that “Iran has no standing to pretend to be a victim,” only to call Tehran a day later and assure it that the attack was unintentional and that Ukraine did not seek an escalation.

Iranian Foreign Minister Abbas Araghchi said on Tuesday that he had spoken with his Ukrainian counterpart, Andrey Sibiga, following the attack on the cargo ship Anna in the Caspian Sea last week.

“Was assured by Ukrainian FM that the attack on an Iranian ship was unintentional and Ukraine seeks no escalation,” Araghchi wrote on X. “Iran does not seek escalation either, but made clear any attack on our citizens or interests is unacceptable. There must be restitution for losses.”

Sibiga described the call as a “frank conversation” and said Kiev wanted to “avoid unnecessary escalation.” He maintained that Ukrainian operations were aimed at countering Russia and were “never intended to target civilian vessels or people,” while calling on Tehran to end its alleged support for Moscow.

The conciliatory language marked a sharp shift from Sibiga’s public response a day earlier, when he denounced Iran’s complaints as “unjustified and groundless” and referred to the Iranian government as “the regime in Teheran.”

“Iran has no standing to pretend to be a victim,” Sibiga wrote on Monday, accusing Tehran of supplying Russia with weapons and dismissing its references to the UN Charter as “absurd.” He also claimed that Iran was attempting to divert attention from Russian strikes on Ukrainian shipping in the Black Sea.

In recent weeks, the Russian military has escalated long-range strikes on port infrastructure and shipping targets in the Black Sea, seeking to disrupt the flow of military supplies and weapons to Ukraine. Multiple freighters, combat and auxiliary vessels, and various port installations have been struck, according to the Defense Ministry in Moscow.

Ukrainian forces struck the Anna early on Saturday, triggering an explosion that killed one Iranian sailor and injured another. The Iranian Foreign Ministry condemned the attack as “reckless,” summoned Ukraine’s acting chargé d’affaires and warned that it reserved the right to protect the country’s security and national interests.

Ukrainian leader Vladimir Zelensky subsequently praised the “very strong results” of strikes on vessels he claimed were involved in transporting military cargo. Ukraine’s ambassador to Israel similarly claimed that the Anna had been carrying components for drones and missiles, while Tehran maintained that the vessel and its cargo were entirely civilian.

Before Tuesday’s call, Araghchi had accused Zelensky of attacking the commercial vessel “at Israel’s behest” and attempting to draw Europe deeper into the conflict. He warned that the killing of the Iranian sailor “cannot go unanswered.”

The incident involving the Iranian vessel comes amid growing accusations that Kiev is expanding its activities in the Middle East. Iraq’s national security adviser claimed this week that authorities had arrested several groups that confessed to carrying out attacks on behalf of Ukraine. Kiev rejected the allegations as “unfounded and unsubstantiated.”