Marien Ngouabi, who had participated in the coup, assumed the presidency on 31 December 1968. One year later, Ngouabi proclaimed the Congo Africa's first "people's republic", the People's Republic of the Congo, and announced the decision of the National Revolutionary Movement to change its name to the Congolese Labour Party (PCT). He survived an attempted ''coup'' in 1972 but was assassinated on 16 March1977. An 11-member Military Committee of the Party (CMP) was then named to head an interim government, with Joachim Yhombi-Opango serving as president. Two years later, Yhombi-Opango was forced from power, and Denis Sassou Nguesso becomes the new president.