People view a photo exhibit in Manila of victims of extra-judicial killings in President Rodrigo Duterte's drug war. Photo: AFP, Ted Aljibe

According to survey results released Wednesday, 78% of Philippine respondents still support a brutal campaign to crackdown on drug activity in the country, reports Reuters.

The number is down from a previous approval rating of 85%, but still shows overwhelming support for the drug war, which has been denounced by human rights groups.

Nearly 9,000 suspected drug users and dealers have been killed during the campaign, during which police and vigilantes have reportedly received cash rewards for executing suspects.