Early results of the first post-independence elections in January 1970 indicated that the Basotho National Party (BNP) might lose control. Under the leadership of Prime Minister Chief Leabua Jonathan, the ruling BNP refused to cede power to the rival Basotholand Congress Party (BCP), although the BCP was widely believed to have won the elections. Citing election irregularities, Prime Minister Leabua Jonathan nullified the elections, declared a national state of emergency, suspended the constitution, and dissolved the Parliament. In 1973, an appointed Interim National Assembly was established. With an overwhelming progovernment majority, it was largely the instrument of the BNP, led by Prime Minister Jonathan. In addition to the Jonathan regime's alienation of Basotho powerbrokers and the local population, South Africa had virtually closed the country's land borders because of Lesotho support of cross-border operations of the African National Congress (ANC). Moreover, South Africa publicly threatened to pursue more direct action against Lesotho if the Jonathan government did not root out the ANC presence in the country. This internal and external opposition to the government combined to produce violence and internal disorder in Lesotho that eventually led to a military takeover in 1986.