Chocolate maker Mars has ordered a recall of chocolate products in 55 countries.
In the UK the products affected include funsize Mars and Milky Way bars and boxes of Celebrations.
In the Netherlands Mars and Snickers bars were also affected.
It comes after a customer in Germany found bits of plastic in a Snickers bar in January. The plastic was traced back to the Mars factory in the southern town of Veghel in the Netherlands.
A spokesperson for Mars said the recall only involved products manufactured at the Dutch plant.
The recall covers mostly countries in Europe and does not extend to the US, where Mars is based.
The company has not said how many bars are affected or how much the recall will cost.
The food giant said it has decided to voluntarily recall some products as a precaution.
"With this recall, we would like to prevent consumers who have purchased one of the above-mentioned products from consuming it," the company said in a statement.
The UK's Food Standards Agency (FSA) said: "Mars has just confirmed to the FSA that there has been UK distribution of products recalled in the Netherlands and Germany. We are awaiting full distribution details from the company and will publish advice shortly."
Products affected in UK
Brand Product Best before dates
Mars Funsize 250g bag 11 Sept 2016 to 2 Oct 2016
Milky Way Funsize 227g bag 2 Oct 2016
Variety Funsize Family favourites 29 May 2016 to 14 Aug 2016
Variety Funsize Party Mix 15 May 2016 to 7 Aug 2016
Celebrations 388g box 8 May 2016 to 28 Aug 2016
Celebrations 245g box 8 May 2016 to 28 Aug 2016
Snickers Miniature 2.5kg catering case 7 Aug 2016 to 14 Aug 2016
Mars says customers with one of the products above should contact its consumer care team:
Telephone: 0800 952 0084

http://www.bbc.com/news/business-35642075