UPDATE 3:02 p.m. EST: All 100 senators have been summoned to the White House.
It isn't uncommon for top administration officials to travel to Capitol Hill to brief Congress on national security and foreign policy matters, but according to Reuters, it's unusual for the entire Senate to be summoned to the White House.
Monday's meeting comes a day after President Trump criticized North Korea's "continued belligerence" during a call with Chinese President Xi Jinping.
ORIGINAL STORY: Chinese President Xi Jinping called again for the U.S. to show restraint with North Korea Monday as the USS Carl Vinson aircraft carrier group headed north.
The carrier group joined Japan for military exercises en route to Korean waters. North Korea's repeated missile tests and incendiary rhetoric have inflamed tensions between it and the U.S.
The Vinson group was originally announced to be heading to North Korea when it was actually thousands of miles away and heading in the other direction.
Only when the parties involved assume responsibility and move in the same direction can there be a quick resolution ...
China has repeatedly urged restraint in spite of North Korea's fiery propaganda and President Trump's combative tweets.
Japanese Prime Minister Shinzo Abe agreed China should play a role, but also urged North Korea to show restraint as well.
North Korea threatened to destroy the carrier "with a single strike" and condemned the U.S.' "foolish military provocative act."
The country plans to celebrate the 85th anniversary of the creation of its army on Tuesday, Reuters reports. Such holidays are often celebrated with nuclear tests or missile launches.
South Korean Defense Ministry spokesman Moon Sang-gyun said the U.S. and South Korea were "fully ready for North Korea's nuclear test."
China is very much the economic lifeline to North Korea so, while nothing is easy, if they want to solve the North Korean problem, they will— Donald J. Trump (@realDonaldTrump) April 21, 2017
Trump has pressured China to play a greater role in curbing North Korea.
I have great confidence that China will properly deal with North Korea. If they are unable to do so, the U.S., with its allies, will! U.S.A.— Donald J. Trump (@realDonaldTrump) April 13, 2017
But he has threatened the U.S. is ready to go it alone if they don't act.
North Korea reportedly detained a U.S. citizen as he tried to fly out of the country on Saturday. The man has been identified as Kim Sang Duk, also known as Tony Kim. It is not yet clear why he was detained.