Ukrainian Drone Explosion Rocks Romanian Port: What We Know

A Ukrainian marine drone exploded in the port of Constanza, Romania, on June 5, 2026, according to reports from multiple media outlets. Kyiv has since acknowledged that the device was Ukrainian and had gone out of control, leading to the explosion in the coastal city.

The incident occurred in Constanza, which serves as the largest port in Romania. Reporting from El País indicated that the marine drone caused a large explosion upon impact or detonation within the port area.

Following the event, Ukrainian authorities in Kyiv recognized that the drone responsible for the explosion was a Ukrainian asset that had malfunctioned. According to La Vanguardia, the drone was described as being out of control prior to the explosion.

Further details regarding the scale of the operation were provided through notifications sent to the Romanian government. As reported by La Sexta, Ukraine notified Romania that the specific drone that exploded in Constanza was part of a larger group consisting of five drones.

The explosion took place against the backdrop of the ongoing war between Russia and Ukraine, during which marine drones have been utilized as a primary tool for naval operations. The event has been documented by several international news organizations, including DW, El Mundo and other European outlets.