A Ukrainian drone attacked the Siren oil tanker, operated by the Greek shipping company Eurotankers, in the Black Sea. from Piraeus and flying the flag of Liberia.
The impact hit the residential part of the ship, where the crew is accommodated.
The new attack continues a series of Ukrainian drone strikes on tankers linked to Russian oil routes and operating in the Black Sea.
At the time of publication, Kyiv had not officially announced responsibility for this particular episode. However, the nature of the target, the area of operation and the previous series of similar attacks near Novorossiysk indicate the Ukrainian origin of the drone.
Greek administration, Liberian flag
Siren is a large oil tanker built in 2009 at the Samsung Heavy Industries shipyard.
The ship is sailing under Liberia flaghowever is under control Eurotankers Inc. is a shipping company with an office at 99 Akti Miaouli in Piraeus.
Herself Eurotankers officially incorporates MT Siren into its fleet and designates it to the Liberian flag. The company specializes in the management of tankers and bulk carriers and operates from Greece.
Eurotankers is registered under Liberian law but operates under Greek law AN 89/67, with its main office and operational staff located in Piraeus. The company explicitly states that more than 30 employees work in its office in Greece.
According to specialized databases, the registered owner of Siren is Marbella Investments Inc., and commercial and technical management is carried out by Eurotankers.
Siren has already worked with Russian ports
The tanker’s connection with Russian oil transportation is confirmed by its previous voyages.
According to AIS, Siren called at Novorossiysk in July 2026. Prior to this, the ship also operated with Russian Baltic ports, including Ust-Luga.
The Ukrainian base War & Sanctions added Siren to the list of ships associated with the transportation of Russian oil and petroleum products.
In particular, the Ukrainian side claims that the tanker was involved in the export of Russian oil products from Ust-Luga and the transportation of Russian oil to Asian countries.
The blow hit a residential area
According to preliminary data, the drone struck the area of the aft superstructure, where the crew’s living quarters are located.
It is this area that is especially sensitive to attack, since the sailors’ cabins, the bridge and a significant part of the ship’s control systems are located there.
Information about possible victims is being clarified.
Not the first strike on Greek tankers
For Greek shipping, today’s episode can no longer be considered an isolated incident.
During 2026, Ukrainian drones repeatedly attacked tankers of Greek interests or Greek control in the area of Novorossiysk and the sea terminal of the Caspian Pipeline Consortium.
Delta Harmony and Matilda
In January, several tankers of Greek interests, waiting to load oil at the CPC terminal, came under attack.
Among them were Delta Harmony And Matilda.
The Athens News reported in detail about this attack in the article “Ukrainian drones attacked two Greek ships in the Black Sea”.
Later, a video of the moment the Delta Harmony was struck appeared. Greece’s ERT confirmed that the ship was at an oil terminal waiting to load crude oil.
In March, another target was a tanker Maran Homer.
It was damaged approximately 26 km from Novorossiysk, but remained on the move. All 24 crew members then survived.
We wrote about this in the material “In the Black Sea, a drone hit the Greek tanker Maran Homer”.
Asia and Nissos iOS
The attacks continued in the summer.
Got under attack Asia And Nissos iOSalso associated with Greek shipowners.
After one of the attacks, Kazakhstan issued an official condemnation because the vessels were operating in the area of the Caspian Pipeline Consortium infrastructure.
“Athens News” talked about this in the material “Kazakhstan condemned the Ukrainian Armed Forces’ attack on tankers of Greek companies near Novorossiysk”.
Nissos Sifnos and Marathi
On July 30, Ukrainian drones attacked two more oil tankers of the Greek control – Nissos Sifnos And Marathi.
Both were located near the CPC marine terminal near Novorossiysk.
Nissos Sifnos was attacked directly during loading operations. A fire broke out on the cargo deck, which was extinguished by the crew and auxiliary vessels.
Marathi was attacked approximately six nautical miles from the terminal while en route to loading.
There were no injuries or oil leaks at that time. The very fact of a double attack on Greek control vessels was confirmed by ERT.
The pattern becomes obvious
Thus, Siren becomes the latest Greek-controlled vessel to come under attack as part of the Ukrainian campaign against Russian oil logistics.
Targets are selected not by the flag of the ship or by the citizenship of the crew, but primarily by the nature of the cargo, route and connection with Russian oil ports.
Therefore, even a tanker under the Liberian flag and Greek management can be considered by Kiev as an element of Russian export infrastructure.
Ukraine hits Russia’s oil revenues
Kyiv’s strategy is clear: limit Russian oil exports and increase the cost of its maritime logistics.
Oil transportation remains one of the most important sources of foreign exchange earnings for the Russian budget.
Ukrainian attacks on oil depots, ports, terminals and tankers should increase insurance rates, complicate freight and increase risks for shipowners.
In August, Reuters reported that the United States even asked Ukraine to temporarily abandon attacks on some tankers using Russian ports, which itself confirms the existence of a similar Ukrainian campaign.
Merchant ships began to protect themselves from drones
The scale of the threat is already forcing shipowners to look for unusual methods of protection.
Reuters reports that commercial ships in the Black Sea have begun installing improvised anti-drone structures – metal meshes, protective frames, water containers and even car tires.
Such solutions were until recently associated exclusively with military equipment, but now they are also appearing on civilian vessels.
Greek shipping finds itself between war and business
The situation is especially painful for Greece, a country with one of the largest merchant fleets in the world.
Greek shipowners continue to operate on international routes, including the transportation of Russian oil and petroleum products where they are permitted by the current sanctions regime.
At the same time, the Ukrainian side is increasingly considering the very fact of the vessel’s participation in Russian oil exports as a sufficient basis for including it in the list of potential targets.
The Athens News previously analyzed this naval phase of the war in detail in the article “Ports, tankers and drones: Russia and Ukraine are trying to cut off each other’s sea supplies”.
Siren – another warning
The attack on Siren shows that a shipowner’s nationality or flag no longer provides much protection.
Formally, this is a tanker flying the Liberian flag. In fact, it is a ship of Greek management, operating through a company from Piraeus and having a history of voyages to Russian oil ports.
And it was precisely this connection with Russian oil logistics that, judging by the nature of previous Ukrainian operations in the Black Sea, made him another target.
Where is Athens’ reaction?
At the time of publication, there had been no official protest from the Greek government regarding the attack on Siren.
This raises questions because we are not just talking about a ship flying a foreign flag. Siren is operated by a shipping company from Piraeus, and the attack hit the accommodation structure where the crew members are located.
Previously, Athens had already officially condemned Ukrainian attacks on civilian tankers of Greek interests in the Black Sea. Moreover, after the discovery of a Ukrainian naval drone near Lefkada, the Greek Foreign Ministry made demarches to Kyiv and emphasized that even the vessel being under sanctions does not give the right to attack it or endanger human lives.
Therefore, the lack of public reaction to the new blow to Siren is especially noticeable. The Greek side will have to answer a simple question: where is the line between political support for Ukraine and the responsibility to protect its own shipping interests and the safety of civilian seafarers?
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