Probably enemy submarine off Newfoundland destroyed according to the U.S. Joint Intelligence Committee. Daily summary dated 29 January 1942

An item reported that after an attack on an enemy submarine [German?] by surface ships in the vicinity of Argentia [Newfoundland, Canada?] an oil slick and water disturbances were sighted.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 50 dated 29 January 1942