The latest attacks occurred within 24 hours between October 14 and 15, when two chemical tankers were set afire after Russian drones were detected in Romanian airspace, according to reports from Deutsche Welle and Reuters. Both ships were at anchor near the mouth of the Sulina canal, a critical shipping route linking the Black Sea to the Danube River that has become a vital export corridor for Ukraine.
At least seven ships have now been attacked in the exclusive economic zones of NATO member countries. The involvement of Russian drones in the most recent attacks, if confirmed, would place the strikes within Romania's territorial waters for the first time, escalating the conflict's proximity to NATO territory.
NATO Secretary General Mark Rutte stated on social media on October 15 that the alliance has increased "counter-drone capabilities" along the eastern flank after meeting with leaders of Bulgaria and Romania. The attacks have spurred requests for NATO to redeploy additional counter-drone systems to protect shipping.
The Danube route has grown in importance as Ukraine seeks alternative export paths amid Russia's ongoing war and blockade of its own Black Sea ports.