The parents of Otto Warmbier, the American college student who died in 2017 after being returned from his detention in North Korea, spoke out on Friday following President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE’s apparent defense of North Korean leader Kim Jong Un over their son's death.

“We have been respectful during this summit process,” Fred and Cindy Warmbier said in a statement. “Now we must speak out.”

“Kim and his evil regime are responsible for the death of our son Otto. Kim and his evil regime are responsible for unimaginable cruelty and inhumanity. No excuses or lavish praise can change that,” they said.

BREAKING: Parents of Otto Warmbier speak out after President Trump's comments on Kim Jong Un and responsibility for Warmbier's death:



"Kim and his evil regime are responsible for the death of our son Otto ... No excuses or lavish praise can change that." https://t.co/jTa1GQ173t pic.twitter.com/XRftw6jzqd — NBC News (@NBCNews) March 1, 2019

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Warmbier, a Cincinnati native and University of Virginia student, was arrested in January 2016 for allegedly stealing a propaganda poster while on a tour of Pyongyang. He was sentenced to 15 years of hard labor but later released to the United States in a vegetative state and died in June 2017.

During a press conference with Kim on Thursday in Hanoi, Vietnam, the president tried to assure reporters that Kim wasn’t responsible for Warmbier’s harsh captivity.

“He tells me he didn’t know about it, and I take him at his word,” Trump said.

Trump told reporters that the North Korean leader was aware of Warmbier's case "but he knew it later."

“And, you know, you’ve got a lot of people. Big country. Lot of people. And in those prisons and those camps, you have a lot of people,” Trump said. “And some really bad things happened to Otto. Some really bad things.”

The president has previously said that Warmbier was "tortured beyond belief" while in prison in North Korea.

Trump also took credit for Warmbier's release in 2017.

Trump faced bipartisan backlash for his apparent defense of the North Korean leader, which left Republican senators fuming.

Sen. Rob Portman Robert (Rob) Jones PortmanMcConnell locks down key GOP votes in Supreme Court fight Romney undecided on authorizing subpoenas for GOP Obama-era probes Congress needs to prioritize government digital service delivery MORE (R-Ohio), who represents Warmbier’s home state, warned Trump not to be “naive” about the “brutal nature” of the North Korean regime.

“I want to make clear that we can never forget about Otto. His treatment at the hands of his captors was unforgivable and it tells us a lot about the nature of the regime,” said Portman, a member of the Foreign Relations Committee.

Sen. Bob Menendez Robert (Bob) MenendezKasie Hunt to host lead-in show for MSNBC's 'Morning Joe' Senators ask for removal of tariffs on EU food, wine, spirits: report VOA visa decision could hobble Venezuela coverage MORE (N.J.), the top Democrat on the Foreign Relations panel, warned that Trump’s comments do “enormous damage” to the United States’ international standing.

“He seems to find warmth with authoritarian dictatorships and believes them and their word when they have records of violating international law and human rights, [rather] than to believe our own intelligence community," Menendez said.