TOKYO, Japan (CNN) -- Japanese health officials warned residents on Wednesday not to eat a variety of frozen green beans imported from China that are contaminated with an extremely high concentration of pesticides.
"Don't eat it. Report if you have it and bring it in," says a warning from the Japanese Ministry of Health.
Thirty-thousand packages of the Ingen-brand green beans had been sold in Japan before the pesticide contamination was discovered.
The public health office in Hachioji city, outside of Tokyo, said the concentration of pesticides was more than 34,000 times the acceptable limit, Japan's Kyodo news agency reported.
Retailers have pulled the beans from the shelves, the latest incident in a string of tainted products that have come out of China in recent years, including milk, dog food and children's toys.
The beans were imported by Nichirei Foods. They were produced by Chinese manufacturer Yantai Beihai Foodstuff, located in eastern China's Shandong province
Authorities are investigating the tainted beans as a possible criminal case, the Tokyo Metropolitan Police Department said.
There are no reports of serious injuries from the pesticides, although several people have been sickened.
CNN's Kyung Lah contributed to this report
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