Food manufacturer Nestlé has recalled some of its KitKat chocolate bars in South Africa after finding glass particles during safety checks.

The company said no customer had complained but preventive measures would be taken by recalling the affected batches.

Customers who had purchased the listed batches have been asked to return them.

The batches are:

• Nestlé KitKat 2 Finger Milk 36x20g UTZ MB with production codes "13590177", "13600177", "13620177", "13630177", "13640177", "20010177" and "20100177" visible on the back of the packaging; and
• Mini Bag Milk 32x200g UTZ with production codes "20120177", "20010177", "20020177", "20030177", "13620177", "13600177" and "13610177" visible on the back of the packaging.

Anyone who suspects they may have consumed the affected batches has been asked to see a doctor.

Nestlé says it will strengthen its quality checks to ensure such incidents do not happen again.