Stockholm - Several new incidents of pieces of glass found in chicken were reported in Sweden on Tuesday despite the recent recall of frozen chicken products by a leading producer, according to media reports.

A dozen cases have been reported since traces of glass was first found in frozen chicken breasts a week ago.

In Pitea, northern Sweden, a man eating a chicken dish at a Thai restaurant discovered two small pieces of glass in his food on Monday, the Pitea-Tidningen newspaper reported.

The reports suggest that traces of glass have been detected in imported chicken from Germany and Denmark. One such find was reported late Monday in Malmo, southern Sweden.

The municipality of Bjuv in southern Sweden has since announced it will stop serving chicken at schools and nursing homes until further notice.

"After the recent alerts, we simply don't dare take any risks," acting chief dietician Annika Hallbeck said in a radio interview.

Swedish poultry producer Lantmannen Kronfagel meanwhile said a customer in Umea, northern Sweden, had found glass in chicken packaged in Denmark.

The customer was not harmed and the company filed a police complaint.

On Friday, Lantmannen Kronfagel recalled some 500 tons of frozen chicken.

Along with police, the company has launched a probe but have been unable to determine whether the glass got into the products accidentally during production or whether consumers were involved.

Lantmannen Kronfagel last week stepped up inspections at its facilities. The group is owned by 42,000 Swedish farmers. dpa