German submarine U-156 sank British ship Willimantic with gunfire 700 miles southeast of Bermuda at 0904 hours; 6 were killed, 32 survived. At 0937 hours, 30 miles off Cape Fear, North Carolina, United States, U-404 sank Yugoslavian ship Ljubica Matkovic; all 30 aboard survived. At the mouth of the Delaware Bay on the US coast, US rescue tug vessel John R. Williams struck a mine and sank at 2005 hours; 14 were killed, 4 survived; the mine was laid by U-373 on 11 Jun.