Former National Police chief Ronald dela Rosa on Monday reiterated his vow to rid New Bilibid Prisons of narcotics, saying he will not tolerate illegal drug syndicates in the state penitentiary.

"Ako ang siga dito, hindi kayo," dela Rosa told some 60 inmates in Building 14.

LOOK: Bureau of Corrections chief Ronald dela Rosa inspects Building 14 at the New Bilibid Prisons in Muntinlupa City @ABSCBNNews pic.twitter.com/ho82kWN0ja

— Bianca Dava (@biancadava) May 7, 2018

Dela Rosa attended his first flag raising ceremony as the chief of the Bureau of Corrections here at New Bilibid Prisons in Muntinlupa City. In his speech, Dela Rosa told the over 2,400 BuCor personnel that they should leave their jobs if they will not clean up Bilibid.

"Ang immediate na mission ko dito ay ihinto natin ang drug transactions, drug use at drug trafficking dahil ang BuCor, talagang wasak na wasak na," he said.

"Ayaw na ayaw ko ng BuCor personnel na duwag. Nagsuot pa kayo ng uniporme kung takot kayong lumaban sa mga gag**g nakakulong. Umalis kayo kung ganon ugali n'yo," he added.

He stressed that he will take back the NBP from the control of convicted drug lords.

"Isa lang ang policy ko -- Never tayong mamroblema sa mga tao sa loob. Dapat sila ang mamroblema sa atin. Gawin natin ang lahat para malinis ang Bucor," he said.

LOOK: Dela Rosa talks to more or less 60 high profile inmates of Building 14 at the NBP, tells them: Ako ang siga dito, hindi kayo. @ABSCBNNews pic.twitter.com/fPXehKKQPQ

— Bianca Dava (@biancadava) May 7, 2018

Dela Rosa is set to lead a command conference with key Bucor officials.

Last year, President Rodrigo Duterte said Dela Rosa will be appointed to the Bureau of Corrections after his mandatory retirement at the PNP, after reports that illegal drugs continued to proliferate at national penitentiary.

• Dela Rosa is next Bureau of Corrections chief