New Delhi, July 26 -- Hours after Ukraine reportedly launched an attack on an Iranian vessel in the Caspian Sea, killing at least one sailor and injuring another, Tehran on Saturday (local time) summoned Kyiv's charge d'affaires.

Citing Iranian state media, Anadolu Agency reported that Manouchehr Moradi, assistant foreign minister and director general for Eurasia, summoned Kyiv's charge d'affaires and conveyed the Islamic Republic's strong protest following what Tehran described as a "criminal" attack by the Ukrainian military on the vessel overnight.

Moradi also stressed that Iran would firmly defend its national security interests, warning that attacks against the lives and property of the country's citizens "will not go unanswered."...