Philippine President Rodrigo Duterte on Monday vowed to sustain the momentum of his bloody war on drugs, telling the nation in an annual address that the fight would be as “relentless and chilling” as during his first two years in power, Channel News Asia reports. Since the Philippine government launched its all-out campaign on drugs in July 2016, it says more than 4,000 suspected drug users and dealers have died in police operations. Rights groups now put the number of dead at more than 12,000. They say many of the killings, including those by vigilantes, were extra-judicial and therefore illegal, the BBC reports. Poor Filipinos are the most vulnerable in Duterte’s war on drugs, according to a research analysis by some of the country’s top schools.