North Korea appealed last week for international aid after at least 300,000 people were displaced and vast portions of farmland were destroyed by the country's worst flooding since the 1970s.
A convoy of about 40 trucks loaded with food, blankets, emergency kits and mineral water will be delivered Thursday afternoon to the border with the secretive communist state, the agency cited S. Korean officials as saying. The shipment is to be completed by the end of August.
Pyongyang earlier said 11% of the country's rice and corn crop was destroyed by the flooding.
Responding to North Korea's request for additional emergency aid, Seoul is considering sending heavy construction equipment and supplies to help the neighboring country repair collapsed bridges, damaged railway tracks and roads, Yonhap said.
On Tuesday the United Nations announced an emergency aid program for North Korea, through which it will deliver around 1,000 metric tons in supplies. Pyongyang has been forced to postpone the second-ever summit with South Korea, which had been scheduled for August 28-30, due to the flooding.