"Immediate and flexible resources" are need to help nearly 19 million people in Yemen, according to the World Food Programme (WFP).
WFP Country Director, Stephen Anderson, was speaking ahead of High-Level pledging conference on 25 April, which hopes to provide emergency resources to alleviate Yemen's humanitarian crisis.
The event is being organized by the UN together with the governments of Sweden and Switzerland in Geneva.
The conflict in Yemen between government and rebel forces is driving what WFP describes as the largest humanitarian crisis in the world right now, with 6.8 million on the brink of famine.
Mr Anderson spoke to Mustafa Al Gamal.
Source: United Nations Radio