MANILA - Philippine National Police (PNP) chief Archie Gamboa on Thursday ordered a fresh reshuffle of key positions in the police force and a surprise drug test of senior officers.

Police Brig. Gen. Albert Ignatius Ferro was named director of Police Regional Office (PRO) in Central Visayas, a reassignment order obtained by ABS-CBN News showed.

Ferro, who was the deputy regional director for operations of National Capital Region Police Office (NCRPO), replaced Police Brig. Gen. Valeriano De Leon.

De Leon was reassigned to the Office of the Chief PNP.

Also relieved from their posts were Police Col. Emma Libunao, director of Bulacan police, and Police Col. Gil Francis Tria, deputy director for operations of Highway Patrol Group (HPG). Both will join De Leon.

In a statement, the PNP chief said the movements were decided "based on evaluation of factors such as performance, campaign against illegal drugs, campaign against illegal gambling, campaign against rogue cops, and failure to adhere to command policies."

Gamboa also led a surprise drug test for 66 star-rank officers during a command conference in the national headquarters.

"This drug testing not only determines the fitness of PNP commanders to stay in their posts. But more importantly, manifests the sincerity of the PNP to cleanse its own ranks according to the desire of President Rodrigo Duterte," he said.

PNP spokesperson, Police Brig. Gen. Bernard Banac, the drug test was administered by the PNP crime laboratory, in which results will be revealed Friday. - With a report from Raffy Santos, ABS-CBN News