A Cameroon-flagged tanker belonging to Russia's shadow fleet has been leaking oil into a marine protected area off the coast of Oman since the end of July, threatening ecological disaster. The last signal shared by the ship tracking website Marine Traffic reports the Caroline Bezengi in the area as of June 11. The environmental NGO Greenpeace estimates that the ship was carrying 800,000 barrels of oil, which has been leaking into the marine protected area for weeks. European countries have increased inspections and interceptions of shadow fleet vessels in recent months, with environmental concerns playing a prominent role. "Shadow fleet vessels are a serious threat to the environment and neglect safety rules," Anitta Hipper, an EU spokesperson for Foreign Affairs and Security Policy, told the Kyiv Independent.