Metro Manila (CNN Philipines) — Presidential candidate Rodrigo Duterte joined the five Davao policemen who were released allegedly by the New People's Army (NPA) on Monday (April 25).

The policemen and a civilian were captured by lawless armed men last week.

Duterte presented them to a group of mediamen who gather outside his home in Davao City Monday afternoon.

The mayor secured their release Monday morning after talks with the NPA in Barangay Mapula, Paquibato District, Davao City.

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The released policemen include Chief Insp. Leonardo V. Tarongoy, the station commander of Paquibato Police Station, PO3 Rosenie L. Cabuenas, PO3 Rudolf Pacete, PO3 Abdul Azis A. Ali Jr. and PO2 Neil C. Arellano.

One civilian abductee, Ronald Dordas, was also released.

In his speech, Duterte said he asked the NPA to free the policemen, pointing out the police are just doing their job.

Duterte also told the police to calm down and not to fight when confronted by the NPA. He said the police should simply perform their duty to investigate and respond.

The mayor added he will rely on the Philippine National Police and the Army in ensuring peace and order should he be elected, and also promised to double the salary of policemen and police officers.