Iran says an attack by Ukraine on an Iranian merchant ship will not go unanswered. According to the report, Iran's foreign minister delivered that message to Sergei Lavrov, underscoring Tehran's anger over the incident.

Iran's Foreign Ministry said on Saturday that the attack on the vessel killed one sailor and injured another. The statement, as described in the report, framed the episode as a direct strike on an Iranian commercial ship rather than a military target.

The communication with Lavrov highlights the diplomatic dimension of the case, with Tehran raising the matter at a high level. Iran appears to be signaling that it views the attack as serious enough to demand a response, even as public details about the incident remain limited.

So far, the information available centers on Iran's account of what happened and the casualties reported aboard the ship. Questions remain about the circumstances of the strike and what form any Iranian response could take.