UN Secretary-General Antonio Guterres welcomed the unanimous adoption of the resolution.

"The secretary-general welcomes the continued unity of the Security Council, which is essential to achieve the goal of de-nuclearization and create the space for diplomatic initiatives aimed at achieving it in a peaceful manner," said Guterres' spokesman Stephane Dujarric in a statement.

The secretary-general supports the Security Council's desire for a peaceful, diplomatic and political solution to the situation, as well as its call for further work to reduce tensions, said the statement. He reaffirmed his commitment to working with all parties to that end.

The secretary-general called on all UN member states to ensure the full implementation of the relevant Security Council resolutions and to redouble efforts to make 2018 a pivotal year for the achievement of sustainable peace on the Korean Peninsula.

"The only way forward for a comprehensive peaceful and political solution requires de-escalation and open communication channels, now," said the statement.

The resolution reiterates the importance of maintaining peace and stability on the Korean Peninsula and in Northeast Asia at large, and expresses its commitment to a peaceful, diplomatic, and political solution to the situation.

It welcomes efforts by the council members as well as other states to facilitate a peaceful and comprehensive solution through dialogue, and stresses the importance of working to reduce tensions on the Korean Peninsula and beyond.

The resolution reaffirms support for the Six Party Talks involving the DPRK and the Republic of Korea, China, Japan, Russia and the United States, and calls for their resumption.

Resolution 2397 is the 10th Security Council resolution that contains sanctions against the DPRK since 2006, when it carried out its first ever nuclear weapon test. It is the third resolution that contains sanctions in 2017 alone.