In an incident known as the MacDonald House bombing , three Indonesian saboteurs placed a bomb on the mezzanine floor on 10 March 1965 , killing three and wounding 33 . This was one of a number of terrorist attacks in Singapore during the Indonesian Confrontation in support of President Sukarno 's opposition to the merger of Singapore , Malaya , Sabah and Sarawak to form the Federation of Malaysia . At the time of the bombing , the building also housed the Australian High Commission and the Japanese Consulate
MacDonald House bombing
MacDonald House bombing
MacDonald House