Subway is apparently selling expired food in Shanghai, China

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(Tang Yan Song/Shutterstock.com)
(Tang Yan Song/Shutterstock.com)

US fast-food chain Subway is investigating media reports in China that workers at an outlet in Beijing doctored food labels and used produce beyond its expiry date, a Shanghai-based spokesperson for the firm said on Monday.

Chinese media reports that started circulating on Friday said workers at a Beijing outlet for Subway, which operates globally as a franchise business, changed expiry and production dates on meat, drink and vegetable produce to extend their use.

Read: What's actually in McDonalds' chicken McNuggets?

"Our headquarters here is now investigating the matter," a Subway spokesperson said. She said the firm had not reached any conclusions. "We want to investigate what caused the labelling issue and whether or not it was the action of a single franchised outlet."

The issue highlights the difficulty firms have to control food quality and safety in supply chains and outlets in China, which can cause serious headaches with regulators and hit sales.

Earlier this year, a China-based food supplier to McDonald's and Yum Brands was caught up in a scandal over workers allegedly tampering with expiry dates, which pummelled China sales at the fast-food chains.

Read: How is KFC's food prepared?

The Subway spokesperson said the firm sent teams to inspect its franchises around the country each month and that it gave staff training on food safety and handling produce.

The Beijing food regulator had also launched an investigation, she added.

Food safety scandals in China are all too common, including recycled "gutter oil" for cooking, donkey meat products tainted with fox and one in 2008 involving tainted dairy products that led to the deaths of at least six infants.

Subway, part of Doctor's Associate, has close to 500 outlets in China, according to its official website.

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