Anglo-Egyptian Sudan revolt culminated in the fall of Khartoum and the death of the British General Charles George Gordon (Gordon of Khartoum) in 1885. Tewfik's forces and those of the United Kingdom were forced to withdraw from almost all of Sudan with Abdalla establishing a theocratic state. Abdalla's religious government imposed traditional Islamic laws upon Sudan and stressed the need to continue the armed struggle until the British had been completely expelled from the country and all of Egypt and Sudan was under his Mahdiya. Though he died six months after the fall of Khartoum, Abdalla's call was fully echoed by his
HMS Khartoum (F45) and the sloop in search for "Torricelli" near Perim Island. After interception, "Khartoum" and these warships took part in a surface engagement with the submarine, during which "Torricelli" was sunk and "Shoreham" damaged. However, during the battle, "Khartoum" was hit by return fire which damaged the after torpedo tube mounting. Some five and a half hours later, at 11.50am (local time), a torpedo's compressed air chamber exploded, propelling the warhead through the deck house of number 3 4.7-inch mount. and causing a serious uncontrollable fire from a ruptured oil tank there. This resulted in an explosion of the ship's artillery