During Baudouin's reign the colony of Belgian Congo became independent. During the parade following the last ceremonial inspection of the Force Publique, the royal sabre of the king was momentarily stolen by Ambroise Boimbo. The photograph, taken by Robert Lebeck, was widely published in world newspapers, with some seeing the act as a humiliation for the king. The next day the king attended the official reception; he gave a speech that received a blistering response by Congolese Prime Minister Patrice Lumumba.