A Clean Sea Transport (CST) product tanker has been prevented from docking in Sweden and the Netherlands due to its cargo of Russian gasoil.

The 75,000-dwt LR1 Sunny Liger (built 2008) is anchored off Amsterdam after port workers refused to unload its fuel on Saturday.

AIS data shows the Marshall Islands-flagged ship left Russia’s Primorsk port on 24 April.

On Friday, dockers did not allow the vessel to enter Rotterdam, while Swedish stevedores had already turned the ship away.

“Late last night we requested all parties in the port of Amsterdam not to let the ship dock and not to (handle) it,” the FNV trade union’s harbour worker branch chairwoman Asmae Hajjari said on Twitter.

“The ship will not enter the Amsterdam port,” she added.

The European Union has not yet imposed a ban on Russian oil.

“Russia is financing the war in Ukraine with the cargo,” the FNV union said in a statement thanking the Swedish workers for turning the ship away.

“At the moment the ship lies at anchor in the North Sea. So far it has not applied for permission to enter the harbour,” Port of Amsterdam spokeswoman Marcella Wesseling told the AFP news agency.

“In principle, we cannot refuse her entry because she doesn’t fall under the sanctions regime (against Russia),” Wesseling added.

Opposition from tug company

Wesseling said the ship could be allowed into port once it has made a formal request, but “only if it was safe for it to do so”.

“If there is any doubt about this, we can decide otherwise,” Wesseling said.

“The port’s nautical service providers and terminal have indicated that they have concerns about the safety surrounding the handling of this ship,” she added.

A tug company said it would decline to assist the vessel if asked, saying it could lead to an unsafe situation if protesters want to block the ship from entering, Dutch news station RTL Nieuws reported.

Dutch foreign minister Wopke Hoekstra said legally the Sunny Liger could not be refused entry into a Dutch port, but that he supported the dock workers’ actions.

CST is a joint venture between MSea Group, Arkview Capital and Scorpio Tankers.

MSea has been contacted for comment.