At 00:24 on 23 May, while en route from Halifax to Saint Thomas, U.S. Virgin Islands, the unescorted 4,455 GRT British merchant ship Zurichmoor was torpedoed and sunk by U-432 east of Philadelphia.
At 00:24 on 23 May, while en route from Halifax to Saint Thomas, U.S. Virgin Islands, the unescorted 4,455 GRT British merchant vessel Zurichmoor was struck and sunk by U-432 east of Philadelphia.