"I want to pass on words of thanks from the Philippine people for the timely aid that Russian Federation provided by giving us trucks and weapons", Duterte said on the sidelines of the Asia-Pacific Economic Cooperation leaders' summit, according to Rappler.
"If you do not like me, I do not like you".
Speaking in the city of Da Nang on Friday ahead of the Asia-Pacific Economic Cooperation (APEC) summit, Duterte said he got into several "rumbles" as a teenager, and was in and out of jail.
Trump and Duterte are expected to hold a one-on-one meeting in Manila on Monday on the sidelines of a 20-nation summit of Asia-Pacific leaders.
"At the age of 16, I already killed someone".
"A real person, a rumble, a stabbing". "That was when I was just 16... what more now that I'm a president?" It was just over a look.
Philippine President Rodrigo Duterte thanked Russian President Vladimir Putin for providing his government with weapons that may have been deployed to suppress Islamic militants in Marawi.
Duterte took steps to thaw frosty relations with China after he won the presidency a year ago.
Police have maintained that they only kill criminals in self-defence, but Amnesty International has accused them of shooting defenceless people dead and hiring assassins to murder drug addicts. Thousands of other deaths remain unsolved, according to government data.
Senator Leila de Lima, a Filipino politician who has condemned Duterte's efforts, was herself charged with drug trafficking after speaking publicly in opposition to the brutality, charges the European Union believes are bogus. Duterte denies the allegations. "We can expect East Asian leaders to exercise a diplomatic blind eye to the killings of thousands of Filipinos over the past 16 months as part of Duterte's drug war".
"The United States has equal authority of Congress and president, so it was not so simple", Duterte said.
It was very easy to discuss this topic with them, as they also suffer the drug disaster, he added.
His spokesman later sought to clarify the remarks, saying those killings were during a "legitimate police action".
Duterte's aides have repeatedly told journalists not to believe everything the president says, cautioning that he often jokes or indulges in "hyperbole".
Butch Olano, Amnesty International Philippines Director, said, "President Trump has spoken about his ability to talk tough with foreign leaders, and this week's ASEAN summit presents a renewed opportunity to raise the horrifying human rights abuses that the region is facing".