Tokyo and Beijing have agreed to work together to ensure that there is no repeat of food poisoning cases from imported frozen food from China.

Japanese Prime Minister Yukio Hatoyama proposed the "food safety promotion initiative" in talks with Chinese Premier Wen Jiabao in Beijing at the weekend.

The initiative follows a series of cases last year where pesticides were found in food from China.

Tests in October 2008 on green beans revealed pesticide residue 34,500 times the level permitted by the Japanese government.

Earlier in the year, 950 people sought medical treatment after eating frozen food imported from China, including dumplings from Hebei province.