McDonald's Japan Says Human Tooth And Plastic Was Found In Its Food

The company said a human tooth was found in a customer's french fry in August and that another diner found a 1.5-inch strip of vinyl in a Chicken McNugget over the weekend.

In a third recent case, a child's mouth was injured by a piece of plastic in an ice cream sundae.

"A child suffered a mouth injury from a piece of plastic. We are deeply sorry for this," McDonald's Japan Senior Vice President Hidehito Hishinuma said at a press conference Wednesday, CBS reports. 

The company said it is investigating how the items ended up in its food.

"To make such cases zero is our goal," said Takehiko Aoki, a senior executive. "We are doing our utmost to tackle them, one by one."

Aoki said he is confident that his family can eat McDonald's products, despite the incidents.