Pakistan, Oct. 13 -- Eleven sailors remained missing on Tuesday after a drone attack sank a cargo ship off Bulgaria's Black Sea coast, officials said. Bulgarian authorities identified the vessel as the Guinea-Bissau-flagged HS Dignity. Five crew members were rescued, while search and rescue teams continued looking for the missing sailors near the village of Krapets.

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The overnight attacks also damaged another cargo ship, the Maltese-flagged Chelsea 3. Bulgarian officials said drones struck the vessel three times. All 15 crew members, including seven Ukrainians and eight Azerbaijanis, were rescued without serious injuries. Bulgaria summoned Russia's ambassador follo...