A union chief said "under no circumstances" would workers unload Russian oil from a tanker docked at Tranmere terminal this afternoon.
The vessel, Seacod, was able to dock in the UK thanks to a loophole in government sanctions that allows Russian cargo to enter British ports as long as the vessel is not owned, operated or chartered by Russians.
Seacod sails under a German flag but collected the oil in the Russian port of Primorsk, where 30% of Russian oil exports are loaded onto ships.
