Geneva  - The United Nations special expert on the right to food said Friday that the world's largest economies were not doing enough to feed the hungry and ensure that there would not be a crisis down the line.

While welcoming the pledged increases to agricultural aid and investment, Olivier de Schutter said it was "not good enough."

The special expert wanted the wealthiest nations to also tackle food price volatility, social protection and global reinsurance, sustainability of production and labour rights.

He would also like to create a system for international governance and coordination on food and agriculture.

During the last day of their summit in the Italian city of L'Aquila, Group of Eight leaders approved a 15-billion-dollar package aimed at supporting more productive farming and helping end hunger in the world's poorest countries.

The package, planned and largely funded by the United States and Japan, was also endorsed by the Group of Five (G5) top developing states.

Though not going far enough for the UN expert, the G8 pledge includes a shift of emphasis away from emergency aid to long-term investments designed to help the poor feed themselves.

According to de Schutter, increasing food security made "economic sense" as "widespread hunger makes the economic recovery less likely."

According to the UN, over 1 billion people are believed to be hungry, with another 100 million having been added to the destitute group due to the worst financial and economic crisis the world has seen seen World War II.(dpa)