UN Secretary-General Antonio Guterres at UN Headquarters in New York City on August 21, 2018. (Photo: CGTN)

Denuclearization of the Korean Peninsula could be a key talking point when world leaders gather at the United Nations next month.

At least that's what UN Secretary-General Antonio Guterres wants. 

Guterres on Monday welcomed the inter-Korean family reunions that began on Monday, the first held in three years and which follow a diplomatic thaw on the peninsula. 

The UN chief "hopes that such reunion events will become routine," said a statement from his spokesman, welcoming "efforts by both Koreas to continue their engagement and to take steps to build confidence and trust." 

Guterres said he "looks forward to discussing how he can further support the parties in their diplomatic efforts to bring sustainable peace, security, and complete and verifiable denuclearization of the Korean peninsula during the upcoming high-level week of the United Nations General Assembly." 

US President Donald Trump is set to attend the gathering of world leaders at UN headquarters in New York beginning September 26 as will Republic of Korea (ROK) President Moon Jae-in and Democratic People's Republic of Korea (DPRK) Foreign Minister Ri Yong Ho.