There was no recorded wreck at this area so it was described to your appropriate authorities, including the Receiver of the Wreck (RoW). U-31 evaded a distribute of 4 torpedoes fired by HMS Trident about fifteen miles (24 km) south of Lorient and was then compelled to dive when fired https://u3190752.newsbloger.com/32872758/u31-no-further-a-mystery