Fast food chain McDonald’s has withdrawn meat burgers from sale at its outlets in Beijing and Shanghai.

The withdrawal follows media coverage showing a staff member at its supplier, Shanghai Husi Food, picking up meat from the floor and mixing expired meat with fresh meat, which triggered food safety concerns.

“We have stopped selling all products related to Husi for food safety. Products affected mainly used beef and chicken,” said an operator from the McDonald’s national delivery hotline.

Shanghai Husi Food, a unit of Illinois-based OSI, has been already shut down by the Shanghai Municipal Food and Drug Administration.

The food safety scare affects not only its China business, but also its Japan business.

McDonald’s Japan previously forecast net income to grow 17 per cent to 6 billion yen ($58.8 million) in 2014. But, it has lowered its outlook after the scandal.

“The negative impact on sales and consumer confidence resulting from this incident, combined with the resulting lost margins and future investments required to rebuild sales and restore the trust of our customers will result in McDonald’s Japan failing to meet earnings targets for 2014,” the company said in a statement.