China on Tuesday congratulated Cambodian Prime Minister Hun Sen on his re-election.

Foreign Ministry spokesman Hong Lei also extended congratulations on the opening of the new Cambodian National Assembly at a regular press conference.

Hong said Chinese Premier Li Keqiang has sent a congratulatory message to Hun Sen.

As traditional friendly neighbors, China and Cambodia have made substantial progress in their strategic cooperative partnership which has benefited the two peoples, Hong said.

He added that China is willing to strengthen friendly cooperation with Cambodia's new National Assembly and administration and promote continuous development of bilateral ties.

The parliament, formed by 68 lawmakers from the ruling Cambodian People's Party, on Tuesday voted for Hun Sen as the prime minister of a new administration.