Romania destroys marine drones near Neptun Deep gas project in Black Sea

Romanian military divers detonated two drifting sea drones near the Neptun Deep offshore gas project in the Black Sea on August 11, 2026, raising fresh alarms about the security of critical energy infrastructure in a region already living with the low hum of war next door.

The drones were spotted by a civilian vessel working on the Neptun Deep project, located roughly 90 nautical miles east of Constanța, well inside Romania’s exclusive economic zone. Romania’s Defence Minister, Radu Miruta, confirmed the controlled detonations publicly, and Ukraine separately verified the drones did not belong to its forces.

What happened, and what kind of drones are we talking about

The two devices have been identified as Gerbera-type drones, a Russian-designed maritime UAV. Gerbera drones are built for a range of military tasks: reconnaissance, acting as decoys to draw out air defenses, or direct attack runs on surface targets.

Romanian military divers located the devices and carried out controlled detonations. Ukraine’s confirmation that the drones were not its own effectively narrows the attribution to one plausible source. Russia has not commented publicly on the incident.

Why Neptun Deep is the target worth protecting

Neptun Deep is not a minor energy project. When production comes online in 2027, it is projected to be the largest offshore gas development in the European Union, drawing on deep-water reserves in the Romanian section of the Black Sea shelf. The project is developed jointly by OMV Petrom and the state-owned Romgaz.

European governments have spent the past several years scrambling to replace Russian pipeline gas with alternatives, and Neptun Deep is one of the continent’s most significant indigenous answers to that problem. The civilian vessel that spotted the drones was actively engaged in construction work at the time.

A pattern of escalating incursions into Romanian territory

The August detonations did not happen in isolation. Romania has been dealing with a steady drumbeat of drone incidents throughout 2026, several of which crossed directly into its airspace rather than just its maritime zone.

In July 2026 alone, Romanian F-16 jets shot down three unauthorized Russian drones that had entered the country’s airspace.

Romania is a NATO member. Its territory, airspace, and exclusive economic zone carry the alliance’s collective defense commitments under Article 5. So far, Romania has handled these incidents domestically.