"The countries most burdened by debt and lack of access to financing are also being battered by multiple other crises - they are among the most affected by the economic impact of Covid-19, poverty and the accelerating climate emergency," UNDP Administrator Achim Steiner said.
"The time has come to address the deepening chasm between rich and poor countries, to change the multilateral landscape, and to create a debt architecture that is fit for purpose in our complex, interconnected and post-Covid world," he added.
The UNDP called for a 30 percent reduction on the value of the public external debt stock of these nations in 2021, which it said could help save up to $148 billion in debt service payments over eight years.
An additional $120 billion in savings could also be generated by refinancing middle-income countries' bond debt to official creditor rates.
The call follows a plan unveiled by UN Secretary-General Antonio Guterres to boost spending by nations on sustainable development goals, with dealing with debt one of the issues identified.
The 17 sustainable development goals include eliminating poverty and hunger, access to clean water, and action to mitigate climate change.
UN Calls for Cutting Poor Nations' Debt
FILE: Migrants sit on their belongings in the back of a truck as it is driven through a dusty road in the desert town of Agadez, Niger, headed for Libya, May 25, 2015.
The UN Development Program proposed on Wednesday reducing the debt of 52 low and middle-income countries, two days before G20 finance ministers meet in India.
PARIS —