Vietnam's National Assembly (NA) elected Nguyen Xuan Phuc as the country's president on Monday, after a five-year term as prime minister.

A resolution on electing Phuc as the new president was adopted with an approval rate of 97.5 percent at the ongoing 11th session of the 14th NA, Vietnam News Agency reported.

In his sworn-in statement, Phuc vowed to be absolutely loyal to the nation, the people and the Constitution of the Socialist Republic of Vietnam, and to work hard to fulfill the duty assigned by the Communist Party of Vietnam (CPV), the state and the people.

This is the first time in history that the NA elected an incumbent prime minister as the state president, according to Vietnam News Agency.

Born in July 1954 in Vietnam's central Quang Nam province, Phuc was a member of the Political Bureau of the 11th, 12th and 13th Communist Party of Vietnam Central Committee (CPVCC) and deputy to the 11th, 13th and 14th NA.

He was elected to the post of prime minister in April 2016.

Later the day, the 14th NA of Vietnam elected Pham Minh Chinh as the country's new prime minister.

A resolution was adopted by the top legislature with an approval rate of 96.25 percent to elect Chinh as the new prime minister of the country at the ongoing 11th session of the 14th NA, Vietnam News Agency reported. 

(With input from Xinhua)