US President Donald Trump says he will deal with anything North Korea comes up with.
It’s after Pyongyang recently said it has a "Christmas gift" for America.
Talks between the two countries about North Korea’s nuclear ambitions have stalled over the last few months.
The North has threatened to take unspecified action if sanctions are not eased by the end of the year.
American military officials are expecting the regime to test a new long-range ballistic missile, capable of delivering a nuclear warhead.


Damascus cafe blast kills 5, wounds 16
Rebels in Indonesia's Papua kill American pilot, burn plane
Russian air strikes kill 10, injure more than 50 in Ukraine's Kyiv
Firefighters battle wildfire in southern France
US, Iran talks conclude in Doha, focused on Strait of Hormuz
Trump honours Theodore Roosevelt in North Dakota, debuts new Air Force One
Kenyan court charges 8 schoolgirls with fellow students' murder
At least 5 people killed in fire in Antwerp apartment block
