AFP - GETTY World War 3 fears: Donald Trump's Twitter post could start war with North Korea

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Tensions between North Korea and the US have reached a boiling point in recent months after Pyongyang conducted a series of intercontinental ballistic missile (ICBM) launches. The president threatened to "totally destroy" North Korea at the United Nations last month, prompting the reggae nation to threaten to test a hydrogen bomb in the Pacific Ocean. But now Donald Trump has further ramped up threats to Kim Jong-Un, after he tweeted on Saturday that "only one thing will work” when dealing with the hermit kingdom. READ MORE: Which countries have nuclear weapons - maps. Does North Korea have nukes? And the “terrifying” message has sparked calls for the US President to stand down amid fears his threatening tweets could spark World War 3.

AFP Donald Trump tweeted "only one thing will work” with North Korea

Washington’s Democrat representative Pramila Jayapal expressed her deep concern about President Trump's latest tweets on North Korea on Saturday, saying they “terrify” her. She told CNN: “It is terrifying the country because I really don’t believe that Americans want the United States to go to war unnecessarily and they certainly don’t want us to be the bully in the schoolyard taunting North Korea to go to war with us.” Describing the posts as "war tweets”, she also said she believed Mr Trump's comments could be interfering with diplomatic efforts aimed at improving the situation with North Korea. She added: ”It's you know, undermining all of his negotiators who are trying to find other ways, I believe, to address the situation in North Korea.”

North Korea stages anti-US rally in battle with Donald Trump Mon, September 25, 2017 Tens of thousands of Pyongyang residents were gathered in the capital's Kim Il-Sung Square to laud leader Kim Jong-Un's denunciation of US President Donald Trump. Play slideshow AFP/Getty Images 1 of 12 Students march during a mass rally on Kim Il-Sung sqaure in Pyongyang

Americans certainly don’t want us to be the bully in the schoolyard taunting North Korea to go to war with us Pramila Jayapal, Democrat

While fellow Democrat Californian representative Ted Lieu suggested the only thing that could de-escalate tensions between the US and North Korea would be President Trump's resignation. The comments come after Trump continued to dismiss taking a diplomatic approach with North Korea, tweeting that "only one thing will work." He posted: “Presidents and their administrations have been talking to North Korea for 25 years, agreements made and massive amounts of money paid hasn't worked, agreements violated before the ink was dry, makings fools of US negotiators. “Sorry, but only one thing will work!”

AFP Tensions between North Korea and the US have reached a boiling point

But Mr Lieu fired back at the US President, tweeting: "Dear @realDonaldTrump: Is that one thing you resigning? I'm sure your generals told you there are zero good military options against N Korea. “Dear @realDonaldTrump: Estimates of war casualties with N Korea could be 2.1 million dead and 7.7 million injured. Get the problem yet? “N Korea is a mountainous country & they hide nukes/chem weapons. US would need massive & bloody ground invasion to try to find those weapons. “What makes @POTUS think US can win & hold territory in N Korea? We invaded a weaker country 16 years ago. Have we won yet in Afghanistan?” He later added: “In 1st Korean War, China & Russia helped North Korea. What if they do that again? Would US troops fire on Chinese & Russian troops? #MAGA”