French soldiers have boarded an oil tanker believed to be part of Russia's 'shadow fleet', which is used to evade sanctions imposed due to the war in Ukraine. The Boracay, having left Russia last month, was situated off the coast of Denmark when drone-related incidents led to the temporary closure of multiple airports. Anchored off western France for several days, President Emmanuel Macron has stated that the crew committed 'serious offenses' but refrained from details. Kremlin spokesman Dmitry Peskov claimed ignorance about the vessel. According to the AFP news agency, the French military personnel boarded the vessel on Saturday as part of an operation against potential sanction evasion. Macron dodged questions regarding the ship's possible involvement with the recent drone flights that disrupted operations in Denmark. French prosecutors are investigating two key charges: a refusal to comply with a stop order and failure to justify the vessel’s flag identity. In reaction to a series of Russian incursions into European airspace, many Western nations have enacted sanctions limiting Russian energy imports since the commencement of Russia's full-scale invasion of Ukraine in 2022. Moscow has created a 'shadow fleet' comprising hundreds of tankers registered in various countries to continue exporting oil amidst these sanctions. Reports indicate that the Boracay, meanwhile known as Pushpa and Kiwala, has been flagged by the UK and the EU as a potential sanction violator. It was also previously detained by Estonian authorities for operating without a legitimate flag. After originating from the Russian port of Primorsk, the tanker was on course to Vadinar, India, but altered its route as it neared French waters. EU leaders held a summit in Copenhagen, focusing on strengthening European defenses following drone activity that caused security alarms. Danish Prime Minister Mette Frederiksen cited Russia as the sole threat warranting a robust response from Europe.