Macron said Europe needed to "kill the business model" of using ageing, foreign-flagged tankers to transport Russian oil by detaining such ships. A military source told AFP Russian ships were common off the French coast. "Every day, between 10 and 15 vessels from the 'shadow fleet' sail off the coast of Brest," the source said. The tanker left the Russian port of Primorsk near Saint Petersburg on September 20, shipping data showed. According to data from the Marine Traffic tracker, the vessel was scheduled to arrive in Vadinar in northwestern India on October 20.