 For her fifth patrol , U @-@ 38 would again depart from Wilhelmshaven with Heinrich Liebe in command on 6 June 1940 . She was to patrol the waters off southern Ireland . During this operation , Liebe would hit six ships , two of which were sailing in convoy at the time . On 14 June , U @-@ 38 sank the Greek steam freighter SS Mount Myrto . The next day , U @-@ 38 sank two ships , both sailing as part of Convoy HX @-@ 47 , sailing from Halifax to England . First sunk was the Canadian steam freighter SS Erik Boye , followed by the Norwegian motor tanker MV Italia . Five days later , on 20 June , the Swedish steam freighter SS Tilia Gorthon was torpedoed and sunk . The Belgian steam freighter SS Luxembourg was destroyed on 21 June , followed by the Greek steam freighter SS Neion the following day . After three weeks at sea , U @-@ 38 returned to Wilhelmshaven on 2 July . 
