A Palau-flagged oil tanker with 15 Indian crew members came under attack from the Iranian military off Oman’s Musandam peninsula and four people were injured in the strike, Omani authorities said on Sunday.Iran has carried out a wave of attacks mainly targeting Israel and American military bases in several Gulf countries after the US and Israel attacked Iran on Saturday.The Iranian retaliation increased after Tehran announced early Sunday that the country’s Supreme Leader Ayatollah Ali Khamenei was killed in the Israel-US strike.Oman’s Maritime Security Center said the oil tanker Skylight was subjected to an attack around five nautical miles north of the port of Khasab in the Musandam governorate, according to Oman news agency.The entire crew of 20 individuals, comprising 15 Indian nationals and five Iranians, has been safely evacuated, it said.It said four crew members sustained injuries of varying degrees and have been given medical care.People familiar with the incident indicated that New Delhi was in touch with the relevant authorities.Iran on Sunday said it would avenge the killing of Khamenei, triggering fears of a wider conflict in the Middle East.The US-Israel joint strikes on Iran came after weeks of negotiations between Washington and Tehran on the Iranian nuclear programme did not produce any tangible outcome.The Ministry of External Affairs (MEA) said on Saturday that India was deeply concerned at the recent developments in Iran and the Gulf region.“We urge all sides to exercise restraint, avoid escalation, and prioritise the safety of civilians,” it said.“Dialogue and diplomacy should be pursued to de-escalate tensions and address underlying issues. Sovereignty and territorial integrity of all states must be respected,” it added.