United Nations Security Council Resolution 161, adopted on February 21, 1961, after noting the killings of Patrice Lumumba, Maurice Mpolo and Joseph Okito and a report of the Secretary-General's Special Representative the Council urged the UN to immediately take measures to prevent the occurrence of civil war in the Congo, even the use of force is necessary. The Council further urged the withdrawal of all Belgian and other foreign military, paramilitary personnel and mercenaries not with the UN and called upon all states to take measures to deny transport and other facilities to such personnel moving into the Congo. The Council also decided that it would launch an investigation into the death of Mr. Lumumba and his colleagues promising punishment to the perpetrators.
The resolution was approved by nine votes to none; France and the Soviet Union abstained.
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