Philippine authorities said police killed six armed bodyguards loyal to a town mayor alleged to be involved in the sale of illegal drugs.

Earlier this week, Philippine President Rodrigo Duterte threatened to have Albuera Mayor Rolando Espinosa Sr. “shot on sight” for protecting his son, a suspected drug dealer. Espinosa surrendered himself to national police on Tuesday, though his son, Erwin, a suspected drug lord, did not.

Six Dead in the Philippines as Duterte Continues Crackdown on Drugs

Local police said a gun fight broke out between the body guards and police who were out on patrol early Wednesday morning near Espinosa’s house.

Six Dead in the Philippines as Duterte Continues Crackdown on Drugs

According to regional police chief Elmer Beltejar, the bodyguards fired upon police first, and the police returned fire, killing six of them. Police also seized at least 17 firearms found inside the compound.

Six Dead in the Philippines as Duterte Continues Crackdown on Drugs

Duterte ran for president on the promise that, if elected, he would eliminate the drug dealers and violence that has plagued the country. Since he won the election in May, police claim to have killed more than 400 suspected drug dealers.