Ayrault, who was in China last week and whose country has no diplomatic representation in North Korea, said it appeared that Beijing was increasingly anxious by the behaviour of its neighbour.
"I still don't think that China is going to put the kind of pressure that's necessary on North Korea", said Anthony Ruggiero of the Foundation for Defense of Democracies. His national security adviser, H.R. McMaster, said the US would rely on its allies as well as Chinese leadership to resolve the issues with North Korea.
"This morning's provocation from the north is just the latest reminder of the risks each one of you face each and every day in the defense of the freedom of the people of South Korea and the defense of America in this part of the world", he said.
North Korea's United Nations ambassador on Monday said U.S. actions had "created a unsafe situation in which thermonuclear war may break out at any moment on the peninsula and poses a serious threat to world peace and security".
"History will attest the soldier does not bear the sword in vain", Pence said.
President Donald Trump on Tuesday dismissed speculation that he was backing away from his tough talk on China, despite demonizing the country repeatedly during the 2016 presidential campaign. Addressing a crowd of US servicemen, .
"North Korea would do well not to test his resolve - or the strength of the armed forces of the United States in this region", he further remarked.
Earlier in the trip, the vice president said he hopes the tensions with North Korea can be resolved peacefully, but underscored that President Trump will not tolerate any more shenanigans from saber-rattling Kim Jong-Un.
Still, Trump dubbed Chinese President Xi Jinping a "terrific person", saying the two leaders spent hours together and had "good chemistry".
He said Trump is certain that negotiating trade deals with individual countries was the best way to ensure they yield "win-win" situations for both sides.
He expressed his intention of advancing security cooperation between Japan and South Korea, including the sharing of information based on the General Security of Military Information Agreement (GSOMIA).
Another official, speaking on condition of anonymity to discuss an intelligence matter, said the missile was a Scud variant that the US calls a KN-17.
"North Korea is China's latent enemy, and South Korea could be China's friend", Shen explained, "I have been really disgusted by how China has handled THAAD".
"Why would I call China a currency manipulator when they are working with us on the North Korean problem?" Trump tweeted on Sunday. That led North Korea to issue routine threats of attacks on its rivals if they show signs of aggression.
The horrific footage displayed missiles shooting over the Pacific and exploding in a giant ball of fire in the U.S. It ends with a burning U.S. Stars and Stripes flag that is superimposed over rows of white crosses in a cemetery, according to Reuters.
But officials at Pentagon are believed to be unsure how North Korea would respond if U.S. the shoots down a test missile. Recent satellite imagery suggests the country could conduct another underground nuclear test at any time.