"Northern Spray" picked up 143 survivors from "North Britain", "Harbury", "Harperly", and "West Maximus" by 0700 and was detached to take the rescued men to Newfoundland. "Loosestrife" assumed the role of rescue ship and picked up the survivors from "Bristol City" and "Wentworth". At 1057 "Oribi" sighted a surfaced U-boat at . "U-223", "U-231", "U-621", and "U-634" dived as "Oribi" approached. "Oribi" dropped 14 depth charges after the U-boats dived. "U-638" torpedoed "Dolius" at 1240. "Sunflower" gained an ASDIC contact at within minutes and destroyed "U-638" with a pattern of ten depth charges before rescuing survivors from "Dolius". "Tay", "Oribi", and "Offa" refueled from convoy oilers that afternoon. "Selvistan", "Gharinda", and "Bonde" were hit by a salvo of four torpedoes from "U-266" within the space of a few minutes about 1950. "Selvistan" and "Bonde" sank within two minutes. "Tay" rescued survivors from the three ships while "Offa" made depth charge attacks damaging "U-266", which was sunk by aircraft on 15 May while attempting to reach base for repairs.