The 146.8-metre bulk carrier lost steering and damaged two mooring pontoons and seven small vessels, although navigation on the Danube remained open
The 17,818-dwt S Line, sailing under the Panamanian flag, struck port infrastructure and stationary vessels at the Romanian port of Tulcea on the Danube. The accident occurred at approximately 17:10 local time on August 31, 2026.
According to the Romanian Naval Authority, the 146.8-metre bulker was proceeding upstream through the Tulcea Bend when its steering system malfunctioned.
The vessel deviated from the navigable route and successively struck port installations and several craft moored along the waterfront.
“As a result, the vessel deviated from its navigational track and collided with port installations and stationary craft,” Romanian Naval Authority spokesperson Irina Pușcașu said
The collision damaged two mooring pontoons and seven small vessels. Boats registered as 01444 MC and 079 SN sank following the impact.
Vessel PA 1591 TL was displaced from its berth and damaged. Boats 0657 TL and 01692 TL sustained damage to their hulls and superstructures, while 01357 TL and 0463 TL suffered superstructure damage.
The total value of the losses has not yet been determined. Inspectors must assess the sunken and damaged boats, pontoons and other affected sections of the waterfront infrastructure.
One of the structures involved was a mooring pontoon belonging to the Sulina Free Zone Administration. The accident occurred near the Ivan Patzaichin waterfront, where passenger vessels and services connecting Tulcea with communities across the Danube Delta are concentrated.
Romanian authorities reported no injuries or fatalities. Despite two boats sinking and several port facilities being damaged, the navigable channel was not obstructed.
Commercial and passenger traffic on the maritime Danube continued. Vessels operating near the accident site may nevertheless need to exercise additional caution while inspections and recovery work are carried out.
The authorities have not reported a confirmed fuel spill or other environmental damage. The condition of the sunken vessels and any potential pollution will need to be determined during the technical assessment.
S Line was sailing upstream to the Ukrainian port of Izmail, where it was expected to load grain. Following the accident, the vessel was not kept near the Tulcea waterfront because the area offered insufficient room for it to turn safely.
A tug moved the bulker to maritime mile 44, where it was anchored for inspection. The Tulcea Zonal Port Captaincy has opened an investigation and begun assessing the damage.
Investigators will examine the technical cause of the steering failure, the crew’s actions and whether backup steering arrangements or tug assistance could have prevented the collision.
Until the investigation is completed, the reported steering malfunction remains the preliminary direct cause. Authorities have not yet announced whether the vessel has been detained or prohibited from continuing its voyage.
Tulcea lies on the maritime section of the Danube used by vessels serving Romanian and Ukrainian ports across the delta. The route is particularly important for grain and bulk cargo movements through Izmail, Reni, Galați and Constanța.
Romanian Coast Guard figures indicate that traffic through the Tulcea and Sulina border points has increased by approximately 50% and 25% respectively since July 2026 compared with the same period a year earlier. The growth reflects the redistribution of commercial shipping and heavier use of Danube transport corridors.
Although the S Line accident did not interrupt navigation, it highlights the risks associated with operating large seagoing vessels through narrow river sections close to urban port infrastructure. A steering failure in such an area leaves little time or space to avoid pontoons and moored craft.
For the cargo owner, the incident could delay the bulker’s arrival for loading in Izmail. Any continuation of the voyage will depend on the technical inspection, the vessel’s class status and decisions taken by the Romanian maritime authorities.
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