There was a maritime incident of unexplained origin involving a Japanese supertanker named “M.Star” near the Strait of Hormuz on July 28, 2010. The M Star, which is owned by the Mitsui OSK Lines, was on its way to the port of Chiba, near Tokyo. One crew member was slightly injured. But the tanker, which was loaded with 270,204 tonnes of oil, was able to continue under its own power to a port in the United Arab Emirates, where investigations were being conducted. News agency reports quoted Japanese officials as saying that an explosion had occurred in the rear starboard area of the ship, and that it was possible that the damage had been caused by an attack from outside. According to the Reuters news agency, the incident left the hull caved in on one side, blew off a lifeboat and smashed windows and doors.
However, Mr. Ataollah Sadr, Managing Director of the Iranian Navigation and Ports Organization, was quoted by the semi-official Mehr news agency of Iran as ruling out the possibility of a terrorist attack. He said: "Due to the presence of some inflammable steams and gases on the oil tankers, the possibility of a blast cannot be ruled out. Based on the dialogues and messages heard from the Maritime Rescue Coordination Center (MRCC), there has been news about a quake occurrence. The captains of the ships which were in the area have not ruled out the possibility of an earthquake. Now, the flame has been contained in the tanker and it is moving towards one of the ports in the littoral states of the Persian Gulf. Till now no comprehensive information has been received about the incident. We will announce the details upon receiving the authentic news."
Mr.Ali Akbar Saffai, the head of the marine department of Iran's southern province of Hormozgan, said that the incident took place in "Oman's trivial waters," rejecting earlier reports that the incident had occurred in the Strait of Hormuz. According to him, the explosion occurred when the ship was sailing in Oman waters in the western part of the strait.
The Chinese Xinhua news agency quoted Mr.Kenji Yoshimura of the Mitsui OSK Lines, as saying that the explosion did not lead to an oil leakage. According to him, the tanker was heading toward Japan after loading crude oil in the port of Das Island in Abu Dhabi when the blast took place.
Till August 3, 2010, the incident was treated by analysts as probably an accident of unexplained origin and not as a terrorist attack. However, on August 3, a group calling itself the Abdullah Azzam Brigades posted a statement and a photo on an Islamist ( Al Faloja) website known to be used by pro-Al Qaeda terrorists. The statement said as follows: “Last Wednesday, after midnight, the martyrdom-seeking hero Ayyub al-Taishan blew himself up in the Japanese tanker M.Star in the Strait of Hormuz between the United Arab Emirates and Oman.”
The photo posted on the web site was of the alleged suicide bomber (al- Taishan) dressed in an Arab-style white robe and cap, pointing at a picture of a supertanker on a videoscreen. The group claimed the attack was meant to be a blow to the global economy and the oil market and that those who have offered other explanations for the incident are trying to cover up the incident.
It would be difficult to comment on the veracity of the claim made in the message till the damage suffered by the supertanker had been examined by experts. If it was an act of suicide terrorism as claimed, the suicide terrorist might have come in a boast filled with explosives and rammed against the tanker. Examination of the point of impact would indicate whether there had been ramming and whether explosives had been used.It is not clear why the organization waited for six days after the incident before it made the claim.