July 28 (Reuters) - Ukrainian Foreign Minister Andrii Sybiha said on Tuesday he called his Iranian counterpart, Abbas Araqchi, following Iran's ‌denunciation of a Ukrainian drone attack on one of its ‌ships, warned him against escalation and told him to end all support for Russia. "I ​emphasised the necessity to refrain from any escalatory steps, as well as to end any support for Russia's war against Ukraine. This war is illegal and it must end," Sybiha wrote on X of his ‌conversation with Araqchi. Araqchi confirmed ⁠on X that he had been assured by Sybiha that the attack on the Iranian ship was unintentional ⁠and that Kyiv did not seek escalation. Araqchi had said on Sunday ‌that the Ukrainian attack on the Iranian commercial vessel in the Caspian Sea, which killed one sailor and injured another, could not go unanswered.