Foreign objects including insects and hair have been found in 46 lunchboxes offered at municipal junior high schools in Tagawa, Fukuoka Prefecture, since April, the local eduction board said Tuesday.
Of the 46 cases, hair was found in 34 lunches and bugs in five, according to the board of education. No health problems have been reported due to the objects.
The board said the objects may have been mixed with food during preparation and urged the responsible company, based in the city of Fukuoka, to take preventive measures. A company official said preparations may have been inadequate as it only recently began operations at its factory.