German submarine U-107 sank US freighter Major Wheeler off the east coast of the United States, killing the entire crew of 35. Off Bermuda, German submarine U-106 sank British ship Opawa. Northeast of the Azores islands, German submarine U-109 sank Panamanian ship Halcyon. Finally, German submarine U-82 attempted to attack convoy OS-18, but was sunk by depth charges in return.