Mediterranean Sea: Explosion on Crude Tanker Off Libya Sparks Security Concerns
A Greek-managed crude tanker has suffered an explosion off the coast of Libya, raising new concerns over maritime security in the Mediterranean. According to consultancy firm Vanguard, the 158,000 dwt tanker Vilamoura experienced a serious incident approximately 80 nautical miles off Libya, reporting both an explosion and significant flooding in its engine room.
The oceangoing tug Boka Summit reached the stricken vessel near Benghazi on Saturday afternoon. AIS tracking data from Pole Star indicates that the tug has taken the tanker under tow. As of Sunday evening, both Vilamoura and Boka Summit were progressing slowly through the central Mediterranean at around four knots, heading towards Greece.
Past Calls at Russian Ports Raise Speculation
Maritime analysts have pointed to Vilamoura’s recent port history as a possible clue to the incident. Over the past year, the tanker made two port calls in Russia—one in Ust-Luga, and another within the Russian sector of the Black Sea. Due to heavy GPS jamming in the region, tracking details remain unclear, but available data suggests the ship operated near Sochi and Novorossiysk, a key loading hub for Russian and Kazakh crude exports.
According to Vanguard, these links to Russian ports may be relevant, given recent patterns in similar maritime incidents.
Possible Limpet Mine Attack Among Theories
While the cause of the explosion remains unconfirmed by official sources, some maritime observers have speculated that Vilamoura could have been targeted with a limpet mine—an explosive device commonly used in sabotage operations at sea.
Since early 2025, several tankers have reportedly fallen victim to limpet mine attacks after recent visits to Russian ports. These include:
- The Malta-flagged Seajewel
- The Marshall Islands-flagged Seacharm
- The Liberia-flagged Grace Ferrum
- The Antigua and Barbuda-flagged Kola
All these vessels experienced explosions under suspicious circumstances, intensifying concerns over targeted attacks against tankers operating in politically sensitive waters.
Conclusion
The incident involving the Vilamoura adds to a growing list of unexplained explosions affecting crude tankers in the Mediterranean and beyond. With speculation mounting over potential links to Russian port activity and possible limpet mine attacks, maritime security experts are closely monitoring the situation as the vessel makes its way towards Greece.





