Rep. Joaquin Castro Joaquin CastroHispanic Caucus members embark on 'virtual bus tour' with Biden campaign Hispanic caucus report takes stock of accomplishments with eye toward 2021 Democratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility MORE (D-Texas) in a Sunday interview said President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE’s rhetoric on North Korea is not helpful and has only escalated tensions between Pyongyang and Washington.

“I don’t think that it’s helpful to get into a Twitter shouting match with a 32-year-old dictator, Kim Jong Un Kim Jong UnSatellite images indicate North Korea preparing for massive military parade South Korea warns of underwater missile test launch by North Korea Trump says he didn't share classified information following Woodward book MORE, in North Korea. I think unfortunately that it’s escalated the tension in the situation,” Castro told ABC’s “This Week” when asked about Trump’s comments that North Korea would face “fire and fury” should it continue to threaten the United States.

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Trump in the last month has faced criticism for some tough rhetoric he has used when discussing North Korea’s nuclear ambitions.

“And he needs to let his diplomats, and his military generals and others, handle this situation,” Castro added.

North Korean state television on Sunday said a test of a miniaturized hydrogen bomb capable of fitting on a intercontinental ballistic missile was a success.

Pyongyang in recent weeks has also launched several missiles.