It is the restaurant chain’s second food-safety crisis in six months.
The affected nuggets, supplied by Cargill Meats Thailand, were sold at two outlets in Japan, including one in Tokyo, spokesman Takashi Hasegawa said.
“We have already begun an investigation into this matter,” said Bruce Blakeman, Singapore-based vice president of corporate affairs for Cargill Asia Pacific.
Cargill, based in Minneapolis, Minnesota, will work closely with McDonald’s as its investigation progresses, he said.
A customer had found a piece of vinyl inside a chicken nugget at an outlet in the northern city of Misawa and there was a similar case of contamination at a Tokyo branch.
Executives confirmed during a press conference yesterday that a small child who chewed on the plastic suffered a cut inside the mouth.
“We express our deep apologies for the worries and nuisance caused to customers by the foreign items found in food,” McDonald's Holdings Japan senior vice president Takehiko Aoki told reporters.
The president of McDonald's Japan, Sarah Casanova, did not appear at the press conference. The company said she was abroad on a business trip, but was heading back to Japan in the wake of the incidents.