BRUSSELS: A group of northern European countries vowed Thursday to harden the fight against Russia’s “shadow fleet” of tankers exporting its sanctioned oil, as Turkish officials said that one of those tankers approaching the Black Sea entrance to the Bosporus Strait was hit by a naval drone. Russia’s shadow fleet is made up of aging tankers that are bought used, often by nontransparent entities with addresses in countries that are not sanctioning Russia.

The EU uses the term "shadow fleet" to refer to tankers flying the flags of foreign states that, in Brussels’ assessment, transport Russian oil

BRUSSELS: A group of northern European countries vowed Thursday to harden the fight against Russia’s “shadow fleet” of tankers exporting its sanctioned oil, as Turkish officials…