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 Mars Netherlands spokesperson said: "We cannot be sure that this plastic was only in that particular Snickers. We do not want any products on the market that may not meet our quality requirements, so we decided to take them all back." The company is one of the largest privately owned businesses in the US and had global sales of $33bn last year.