return, Pretoria promised to stop assistance to the MNR in exchange for FRELIMO's commitment to prevent the ANC from using Mozambique as a sanctuary to pursue its campaign to overthrow white minority rule in South Africa. Following a May 1983 car bombing in Pretoria, the South Africans bombed the capital, declaring they had killed 41 'ANC Terrorists' while in actuality killing three workers at a jam factory in Maputo. With the economy in shambles, Machel was forced to scale back some of the more ambitious socialist policies; in a visit to Western Europe that same month, Machel signed military and economic agreements with Portugal, France, and the UK. Collective and state agricultural programs were also scaled back, prompting concerns from the socialist bloc that Mozambique was "moving straight and naively into the mouth of the evil capitalist wolf". The volume of direct South African government support for RENAMO diminished slightly after Nkomati Accord, but documents discovered during the capture of RENAMO headquarters at Gorongosa in central Mozambique in August 1985 revealed that the South African Army had continued and extended its already extensive logistical, communication and military support for RENAMO. FRELIMO, meanwhile, fully honoured its side of the deal to expel violent ANC members from its territory and to downgrade the ANC's presence in the south of the country. Military stalemate By the end of the 1980s RENAMO, whilst incapable of capturing or securing any large cities, was still able to move freely in rural areas and attack smaller settlements at will. FRELIMO retained control of larger urban areas and the corridors, but was unable to effectively protect the countryside from RENAMO attacks. FRELIMO was also unable to pin down RENAMO and force it into more direct conventional warfare. On 19 October 1986, President Machel died when his presidential aircraft crashed near South Africa's border under mysterious circumstances. A South African sponsored investigation concluded that the crash was caused by errors made by the flight crew, a conclusion that was not universally accepted. Subsequent investigations have failed to reach a conclusion and the accident remains surrounded by conspiracy theories claiming that South Africa was responsible for the crash. Machel's successor was Joaquim Alberto Chissano, who had served as foreign minister from 1975 until Machel's death. Chissano continued Machel's policies of expanding Mozambique's international ties, particularly the country's links with the West, and starting programs of internal economic and military reforms.