Tokyo, April 5 - A bottle of green tea produced by Japan's Kao Corp was found tainted with a large amount of weedkiller, the company said on Saturday.
Kao, Japan's largest household products maker, said the bottle, sold at a Tokyo supermarket late last month, may have been contaminated intentionally as the weedkiller was not used in the production line.
A man who drank the "Healthya" tea suffered a minor diarrhoea but has already recovered, the company said, adding that he said the bottle may have been half-open.
Kao said it has not found any other tainted bottles in its inspection and it has no plan to recall the products.
Police are also investigating the incident.