In the phone conversation, Trump also sought Duterte's opinion of North Korean leader Kim Jong Un and told him the USA had two nuclear submarines "over there". The transcript, which was first published by The Intercept, appears to have originated from the Philippine government. The locations of nuclear-armed submarines have to remain a secret to even the highest commanders in the USA military.
This undated picture released from North Korea's official Korean Central News Agency (KCNA) on May 22, 2017 shows North Korean ground-to-ground medium-to-long range strategic ballistic missile Pukguksong-2 being launched in a test-fire.
'They have threatened to kill the hostages if the government forces unleashed against them are not recalled, ' said Father Socrates Villegas, president of Catholic Bishops Conference of the Philippines.
Duterte told Trump that summit members were openly nervous about North Korea and the unpredictability of its leader, Kim Jong Un. In response, Duterte said that the North Korean is a "mad man" and that his regional block, ASEAN, was anxious about the abilities of Kim's rockets. He tells President Duterte that the United States once had a "previous president who did not understand" President Duterte's current ways.
"I just wanted to congratulate you because I am hearing of the unbelievable job on the drug problem", Trump said at the beginning of the call.More news: LaVar Ball selling "Stay In Yo Lane" shirts
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Duterte has been widely condemned for sanctioning violence against suspected drug dealers.
Manila strongly rejects the allegations while Duterte continues to defend his signature campaign. But it began with Trump speaking enthusiastically about Duterte's effort to beat back illegal drugs in his country.
Duterte - who has been waging a controversial war on drugs that has incited violent vigilantism and claimed thousands of live - said he would consider expanding martial law across the entire country if the threat continued. "I will not be hesitant to protect the Filipino nation", Duterte said.
According to a report by the country's news agency Bernama, Malaysia's Inspector-General of Police Khalid Abu Bakar said that the country had "taken precautions, and are always beware of what is happening in neighbouring country Philippines". President Trump didn't really comment when asked about it in late April.
"Martial law of Mr Marcos was very good", Duterte said.
"I understand that, and fully understand that", he said in the transcript, "and I think we had a previous president who did not understand that, but I understand that and we have spoken about this before".