Roman Catholic Archdiocese of Khartoum its see, the present Sudanese capital, as its southern territory was split off to establish the Apostolic Prefecture of Bahr el-Ghazal, which is now the Diocese of Wau, somewhat approximating the split between Sudan and South Sudan. However it continued to cover Niger, Chad and stretched into modern Nigeria and Cameroon. On 28 April 1914 the Apostolic Prefecture of Adamaua (now the Diocese of Nkongsamba) was formed, taking territory from the Apostolic Vicariate of Khartoum. It lost territories again to establish missionary jurisdictions becoming current dioceses : On 12 December 1974 it was promoted as Metropolitan Archdiocese of Khartoum. In
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