India, Feb. 7 -- Despite being the driving force for sustainable development, middle-income countries face unique challenges and require more international support and vision to thrive, the UN deputy chief said on Tuesday.

Speaking at a conference on addressing development challenges of middle-income countries (MICs), in Rabat, Morocco, Amina Mohammed said recent crises have laid bare inequalities and exposed stark contrasts.

"While developed countries have been able to protect and swiftly support their populations, other countries have been left dependent on the international community and the existing global support systems."

She said existing frameworks fall short in meeting the complex needs of developing nations.

"The obstacles t...