The crew of a ship are missing after a drone strike sank a vessel in the Black Sea, off the coast of NATO member Bulgaria. Rumen Radev, Bulgaria's prime minister, said another ship was also damaged and described the attack as a gross violation of international law. It's not known where the drone came from, and it hit too far out to trigger a NATO response. Sky's Ivor Bennett says the footprint of the Ukraine war is expanding and tensions are rising. #SkyNews #Bulgaria #droneattack SUBSCRIBE to our YouTube channel for more videos: http://www.youtube.com/skynews Follow us on X: https://twitter.com/skynews Like us on Facebook: https://www.facebook.com/skynews Follow us on Instagram: https://www.instagram.com/skynews Follow us on TikTok: https://www.tiktok.com/@skynews For more content go to http://news.sky.com and download our apps: Apple https://itunes.apple.com/gb/app/sky-news/id316391924?mt=8 Android https://play.google.com/store/apps/details?id=com.bskyb.skynews.android&hl=en_GB Why not listen to one of our podcasts? This is Why, available for free here: https://podfollow.com/thisiswhy or Ed Conway's Stuff Matters, available here: https://podfollow.com/stuff-matters To enquire about licensing Sky News content, you can find more information here: https://news.sky.com/info/library-sales