"The problem of North Korea will be dealt with," said President Trab

US President Donald Trub said North Korea today is a "problem to deal with" as Pyongyang's regime has warned it will proceed to the sixth nuclear test.

"North Korea is a problem. The problem will be addressed, "the US president said, answering a question about what his message is about North Korea.

He said he believed that Chinese President Shi Jinping would work "very hard" to help solve this challenge.

The Republican president had several meetings with the Chinese president last week in Florida.

"I started to like and respect President Si ... He is a very special person. I think he will try very hard, "he added.