 She also torpedoed and sank the German catapult ship "Ostmark" and the French tug "Chassiron".She fired upon and sank the German submarine "U-644" and attacked the German submarine "U-302" and the Italian submarine "Brin" as well as two unidentified submarine contacts, all unsuccessfully.An attack also failed on the German tanker "Benno", formerly the Norwegian "Ole Jacob", which had also been captured earlier by the "Atlantis".