M. Star: Ayyub Al Tayshan?

Privately, U.S. officials have expressed skepticism about the al Qaeda-affiliated group's claim of responsibility. They say that while the investigation isn't finished, the visible damage to the tanker hull is more consistent with a collision than a terrorist attack.
a Dolphin class submarine have passed through Suez. here A report in the London Sunday Times 30 May said that Israel was placing submarines off the coast of Iran. According to the report, three submarines have already arrived in the Persian Gulf, and one will be permanently stationed there. The deployment is Israel's response to Iran's development of ballistic missiles, the report said.
"After midnight last Wednesday, the martyr hero Ayyub Al Tayshan blew himself up in the Japanese oil tanker M. Star in the Strait of Hormuz between the U.A.E. and Oman,"In a statement posted on a militant website and dated Aug. 2, by the Abdullah Azzam Brigades.

m. star: Iranian sub? Israeli

Speculation about an attack on a VLCC in the Straits of Hormuz:
The large square dent in the supertanker was caused by a rocket grenade?

Most officials dismissed the idea of a collision with a submarine, because no damaged sub is known to have surfaced. American officials reported no collision with United States submarines in the region. here. U.S. nuclear submarines have been in two collisions in the busy Strait of Hormuz since 2007, one involving a Japanese supertanker and the other a U.S. warship. The Dolphin class is a non-nuclear (SSK) type of submarine developed and constructed by Howaldtswerke-Deutsche Werft AG (HDW), Germany for the Israeli Navy. It is based on the export-only German 209 class submarines, but heavily modified and enlarged and is thus not seen as a member of the 209 family. The Dolphin boats are considered among the most sophisticated and capable conventional submarines in the world.[1] The Type 209 is a class of diesel-electric attack submarine developed exclusively for export in the late 1960s by Howaldtswerke-Deutsche Werft of Germany. Turkey has 209s. Iran has kilo-class subs,


It could also have been the bull nose end of a jetty at one of the loading ports where the tanker may have come into contact," here

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