The United Nations estimates that a third of North Korea's people do not have enough to eat.

Despite steady improvements in the supply of food since a major famine in the 1990s, North Korea relies heavily on outside help and aid is barely trickling in after years of isolation.

Al Jazeera's Teresa Bo was given rare access to a co-operative farm in Sariwon City where the government says it is trying to improve production.

Source: Al Jazeera