The Philippines president has ordered police to let journalists join raids in his crackdown on illegal drugs to disprove growing allegations of extrajudicial killings - but warned reporters they could be shot.

Police say it was not a terrorist act, adding: "He could have shot everybody there, but he did not shoot anybody."

Dozens of Philippine government and police officials turned themselves in yesterday, a day after president Rodrigo Duterte linked them to the drugs trade, stepping up a war on narcotics that has killed hundreds since he took office in June.