Guterres said recent moves by South and North Korea to ease tensions were important, but he added: "let's not forget that the essential problem is yet to be solved."
"I believe war is avoidable," Guterres told reporters, but he added: "I am not yet sure that peace is guaranteed."
The UN chief said his goal was to ensure that "those who are more relevant in this process are able to seriously talk to each other and seriously find a way to denuclearization."
The United States and North Korea have shown little interest in holding direct talks to address the crisis.
Presenting his priorities for 2018 to the General Assembly, Guterres said there were "small signs of hope" after North Korea agreed to take part in the Winter Olympics in the South and the re-opening of a military hotline between Pyongyang and Seoul.
Guterres will attend the opening ceremony of the Pyeongchang Games next month.
North Korea's race to build an intercontinental ballistic missile capable of hitting the United States with a nuclear warhead has raised fears of a devastating conflict.
Trump's administration has been adamant that North Korea must first freeze its military programs before talks can take place.
The United States has led the drive at the Security Council to ratchet up economic sanctions on North Korea such as restrictions on oil supplies that were adopted in December.
Disclaimer: No Business Standard Journalist was involved in creation of this content
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
