"Archimede", "Perla" and "Guglielmotti" sailed from 19 to 21 June. On 26 June, "Guglielmotti" ran onto a shoal and suffered severe damage; the wreck was salvaged later. Documents recovered from "Galileo Galilei" were used to intercept and damage "Evangelista Torricelli" on 21 June. The submarine headed for home but was caught off Perim Island and sunk by "Kandahar", "Kingston", "Khartoum" and the sloop . Several hours afterwards, a torpedo on "Khartoum", damaged by a shell from "Evangelista Torricelli", exploded and caused an uncontrollable fire. "Khartoum" tried to reach Perim Harbour about distant but the crew and prisoners had to abandon ship; later a magazine explosion wrecked the vessel. The sloop "Falmouth" exploited the document find from "Galileo Galilei" to sink "Luigi Galvani" in the Gulf of Oman on 24 June. On 13 August, "Galileo Ferraris" made an abortive attempt to intercept the battleship en route from Suez to Aden.