Philippine President Rodrigo Duterte says he will never visit the United States while he is in office, and adds that he has 'seen America and it's lousy.'

Duterte delivered his latest verbal attack on the United States after he was asked in a news conference Friday to react to a threat by a U.S. congressman, Massachusetts Rep. Jim McGovern, to lead a protest if Duterte accepts President Donald Trump's invitation to visit the White House.

'There will never be a time that I will go to America during my term, or even thereafter,' Duterte said to reporters on Friday.

Philippine President Rodrigo Duterte says he will never visit the United States while he is in office, and adds that he has 'seen America and it's lousy'

'So what makes that guy think I'll go to America? I've seen America, and it's lousy.'

McGovern held a hearing in Congress on Thursday criticizing Duterte's drug war that has resulted in a mass killing of more than 7,000 suspected addicts and dealers in the Philippines.

The death have been carried out by both the Philippine National Police and unknown vigilantes.

Many human right groups have criticized the leader's tendency to target poor areas and lack of due process.

Duterte delivered his latest verbal attack on the United States after he was asked in a news conference Friday to react to a threat by a U.S. congressman, Massachusetts Rep. Jim McGovern (right), to lead a protest if Duterte accepts President Donald Trump's invitation to visit the White House

Back in April, United States president Donald Trump invited Duterte to the country for a visit

In his opening remarks, McGovern said: 'We should be clear what an extrajudicial killing or execution is: It is the purposeful killing of a person by governmental authorities without the sanction of any judicial proceeding.

'No arrest. No warrant. No judge. No jury. Simply, murder.'

McGovern was most pressed to bring up the Filipino president's human rights violations.

He added: 'If he comes, I will lead the protest. We ought to be on the side of advocating for human rights, not explaining them away.'

Duterte retorted that he too could investigate the United States. 'You're investigating me and the internal affairs of my country? I'm investigating you, and I will investigate you, and I will expose it to the world what you did to the Filipino, especially to the Moro Filipino,' Duterte said

Duterte retorted that he too could investigate the United States.

'You're investigating me and the internal affairs of my country? I'm investigating you, and I will investigate you, and I will expose it to the world what you did to the Filipino, especially to the Moro Filipino,' Duterte said.

He was most likely referring to the Battle of Bud Dajo in 1906 in the island of Jolo where American troops killed more than 600 Moro people.

Duterte's remark's indicate he may not be accepting the invitation from President Trump.