KFC, McDonald's express concern in food supplier safety scare

US fast food chains McDonald's and KFC have expressed concern on their food supplier safety scare in China.

The two have promised to stop using a Shanghai meat supplier after Chinese regulators shut the firm down over food safety concerns.

The company, Shanghai Husi Food Co., Ltd, was reportedly reprocessed meat products that were beyond their expiration dates and re-sold them to the fast-food chains.

An official from the suspect company, a member of the U.S. OSI Group, says the firm is working with local authorities to investigate the matter, but declines to comment further.

According to its website, OSI has been supplying McDonald's in China since 1992 and Yum Brands, owner of KFC, since 2008.

Authorities say the questionable product was also sold to Pizza Hut.

The incident is a headache for Yum and McDonald's, since the pair were hit by a food safety scandal in China in 2012.

Yum suffered a sharp dive in profits early last year, and has only recently started to bounce back in China.