The vessel is the third to be targeted in the region since Washington and Israel launched strikes on Iran A crew member has been killed in an attack on an oil tanker off the coast of Oman, local media reported on Monday, citing the Defense Ministry. The vessel is the third to be targeted in the region since the US and Israel launched strikes on Iran. Massive bombing strikes on Iran began on Saturday, killing Supreme Leader Ayatollah Ali Khamenei, senior officials, and hundreds of civilians.