The product tanker Maistros suffered engine failure during anchoring and collided with anchored product tanker Ridgebury Kathrine Z in North Sea at the outer anchorage off Antwerp, Belgium. The vessel was maneuvering to drop anchor at the side, but suffered mechanical failure and was adrifted to the other vessel. The both ships suffered damages, such as breaches and broken railings, but remained afloat without any leaks report and injured seamen. The accident was reported to local authorities and at the scene was dispatched a tug, which secured the product tanker Maistros at the anchorage. The both vessels were detained at the scene until further repairs and inspection.

The local authorities started investigation for the root cause of the accident. The ships will be repaired and special surveyed before allowed to enter in Port of Antwerp and return in service.

The product tanker Maistros (IMO: 9407847) was en route from Asaluyeh, Iran to Antwerp, Belgium with unspecified cargo on board. The vessel has overall length of 228.00 m, moulded beam of 32.00 m and maximum draft of 14.00 m. The deadweight of the ship is 73,334 DWT and the gross tonnage is 42,010 GRT. The tanker was built in 2009 by New Times Shipbuilding in their shipyard in Jingjiang, China. The owner and manager of the product tanker Maistros is Greek company Dynacom Tankers Management.

The product tanker Ridgebury Kathrine Z (IMO: 9439797) was at outer anchorage off Antwerp, currently under ballast. The vessel has overall length of 183.00 m, moulded beam of 32.00 m and maximum draft of 9.00 m. The deadweight of the product tanker is 50,215 DWT and the gross tonnage is 29905 GRT. The vessel was built in 2009 by SPP Shipbuilding Sacheon shipyard in South Korea. The owner and operator for the product tanker Ridgebury Kathrine Z is Danish company Norient Product Pool.