In a short tweet that lacked any real description, President Trump made a major announcement about the situation in North Korea.

The tweet comes on the heels of Trump visiting China during his 12-day trip overseas. Discussions with Chinese leaders covered an array of topics including trade and cybersecurity, but the biggest topic on the table is North Korea and the threat it poses to the United States and its allies.

Trump has put his foot down when it comes to any foreign nation or entity doing business with North Korea. “Do business with North Korea, and you won’t be doing business with the U.S.,” Trump declared more than one month ago.

Here is what Trump wrote in his tweet Thursday morning: “China is sending an Envoy and Delegation to North Korea – A big move, we’ll see what happens!”