North Korea has been \"very cooperative\" toward a South Korean civic group who monitored the distribution of aid to children in the communist country, an official said Tuesday. Upon government\'s approval last month, the Okedongmu Children in Korea (OKCK), a Seoul-based charity group dedicated to enhancing the welfare of children, sent some 146 million won (US$130,298) worth of relief goods, including ingredients for bread and powdered milk, to a children\'s hospital and nurseries in the North Korean city of Nampo.