In this July 26, 2021 photo, Philippine President Rodrigo Duterte speaks during the annual state of the nation address at the House of Representatives in Manila. (JAM STA ROSA / POOL / AFP)

MANILA - Philippine President Rodrigo Duterte formally accepted on Wednesday the ruling party PDP-Laban's nomination to run for vice-president in next year's national elections.

"No words can express my gratitude for your continued trust and confidence in my leadership and for nominating me as the party's official vice presidential candidate in the 2022 election," Duterte, 76, said in a speech during the party's national convention held in Pampanga province, north of Manila.

The party also nominated Duterte's long-time aid and Senator Christopher Go as the party's official presidential candidate, while Go declined the nomination.

The ruling party also nominated Duterte's long-time aid and Senator Christopher Go as the party's official presidential candidate, while Go declined the nomination

"I have already respectfully declined your endorsement through a letter I sent last week. I am hoping that the party will continue to respect my decision," Go said, adding he would continue to support the party and urged them to prioritize other personalities who are interested to run for presidency.

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Eight government officials are also named as PDP-Laban's official senatorial candidates in next year's polls. Candidates for the 2022 elections will officially file their candidacy in October.

Duterte thanked his party mates and political allies for their support of his administration. "I cannot thank you enough for your strong support for the administration's priorities, especially our fight against illegal drugs, terrorism, corruption, and poverty."

"I am hopeful that this will allow me to continue serving the Filipino people and help lead the entire nation towards greater progress," Duterte added.

Duterte said his running for the vice presidency is due to "a sense of love of country."

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"I want to see the continuity of my efforts even though I may not be the one giving the direction."

Duterte was elected president in the May 2016 elections. The constitution limits Philippine presidents to a single six-year term.

The vice-president is elected separately from the president under the Philippine law.