WATCH: Full speech of President-elect Rodrigo Duterte at his #DU31 Thanksgiving Party. https://t.co/LMBajoW7ub

— ABS-CBN News (@ABSCBNNews) June 4, 2016

DAVAO CITY -- President-elect Rodrigo Duterte on Saturday demanded the resignation of three high-ranking police officials at the Philippine National Police headquarters in Camp Crame for their alleged involvement in corruption.

Duterte said he would "humiliate" the officials, whom he did not name, if they refused to step down.

"Corruption must stop. Tatlong general diyan sa Crame (should) resign. Do not wait for me to name you in public because I will only humiliate you, " he told his cheering supporters at his victory party in Davao City.

Duterte said dismissed corruption cases against policemen will also be reviewed.

GRAND VICTORY PARTY

Tens of thousands of his supporters celebrated Duterte's victory on Saturday, filled with hope that the tough-talking outsider who shook national politics will deliver on his promise to defeat crime and corruption.

At least 180,000 people wearing shirts printed with the 71-year-old firebrand's image converged at a sprawling park that is right next to a crocodile farm.

It is the single largest public gathering in the city in recent memory, and the crowd was still swelling ahead of Duterte's speech in the evening, Chief Inspector Milgrace Driz, the city police spokeswoman, told ABS-CBN News.

Many endured hours on the road from surrounding provinces, some with sleeping blankets, to celebrate the victory of the first President-elect from Mindanao.

Duterte, an outsider in national politics, swept to power in the May 9 elections promising to uplift the lives of the poor by waging a relentless fight against crime and corruption.

Loud bass thumped from loud speakers as local singers entertained the crowd, who were sprawled on picnic blankets in the grass field.

Later in the evening, television stars and DJs from Manila worked up the crowd ahead of the new President's speech.

The park grounds bustled with vendors selling souvenir items including caps, key chains and shirts with pictures of Duterte and his youngest son, Sebastian, an unlikely heartthrob during the campaign because of his bad boy charm.

Local politicians assembled at a holding area, awaiting Duterte's arrival, where they were served with vanilla cupcakes, which were frosted to resemble the image of the country's new leader.

Duterte's election victory has brought hope to the poor of Mindanao, who have long felt marginalized with power and commerce centered in the capital, Manila.

He has promised to spread economic growth to the provinces, calling Manila, with chronic traffic jams and creaking infrastructure, a "dead city."

Duterte's critics, however, accuse the mayor of tolerating vigilante “death squads.” He has denied the allegation.

Duterte has stayed in Davao since the May 9 elections. Congress officially proclaimed him last week and he will take over from outgoing President Benigno Aquino on June 30.

He has also promised to govern from both Manila and Davao even if it meant a grueling daily commute by plane.