political opponents, and alleged anti-social elements such as prostitutes were sent, oftentimes without trial due to a lack of judges. In 1980, President Machel visited numerous camps and ordered the release of about 2,000 detainees and closure of numerous camps, citing human rights abuses. These were later described by foreign observers as "infamous centers of torture and death." It is estimated that 30,000 inmates died in these camps. The government was also accused of executing thousands of people while trying to extend its control throughout the country. Aftermath Transition to peace In 1990, with the Cold War in its closing days, apartheid crumbling in South Africa, and support for RENAMO drying up in South Africa, the first direct talks between the FRELIMO government and RENAMO were held. FRELIMO's new draft constitution in July 1989 paved the way for a multiparty system, and a new constitution was adopted in November 1990. Mozambique was now a multiparty state, with periodic elections, and guaranteed democratic rights. On 4 October 1992, the Rome General Peace Accords, negotiated by the Community of Sant'Egidio with the support of the United Nations, were signed in Rome between President Chissano and RENAMO leader Afonso Dhlakama, which formally took effect on 15 October 1992. A UN peacekeeping force (UNOMOZ) of 7,500 arrived in Mozambique and oversaw a two-year transition to democracy. 2,400 international observers also entered the country to supervise the elections held on 27–28 October 1994. The last UNOMOZ contingents departed in early 1995. By then out of a total population of 13-15 million at the time, the Mozambican civil war had caused about one million deaths, displaced 5.7 million internally and resulted with 1.7 million refugees. Landmines HALO Trust, a de-mining group funded by the US and UK, began operating in Mozambique in 1993, recruiting local workers to remove land mines scattered throughout the country. Four HALO workers were killed in the subsequent effort to rid Mozambique of land mines, which continued to cause as many as several hundred civilian injuries and fatalities annually for years after the war. In September 2015, the country was finally declared to be free of land mines, with the last known device intentionally detonated as part of a ceremony. Resurgence of violence since 2013 In mid-2013, after more than twenty years of peace, the RENAMO insurgency was renewed, mainly in the central and northern regions of the country. On 5 September