Family-owned German supermarket chain Aldi reported a record Christmas trading boost that helped push full-year sales in the UK and Ireland to more than £10bn for the first time.
Record sales were seen in both cut-price and high-end products during the Christmas trading period and sales in December were more than 15% higher than in December 2016.
"This was our busiest-ever Christmas as millions of festive shoppers switched to Aldi from more expensive food retailers,” said Matthew Barnes, the supermarket's managing director for the UK and Ireland (left).
"Although we saw strong growth across all categories, the performance of our premium ‘specially selected’ range in particular surpassed all expectations," he added.
Sales of the "specially selected" range rose 30%.
Such levels of growth will come as a concern to Aldi's UK-based rivals which are fighting to maintain market share as discount rivals such as Aldi and Lidl advance in popularity.
There was little reaction from the three main supermarkets listed on the London Stock Exchange.
Tesco, Sainsbury and Morrisons have yet to report on their Christmas trading periods, but Debenhams - reporting on Thursday - had a troubled festive trading season, highlighting the squeeze on retail sales from low wage growth and high inflation.
Shares in Tesco were up 0.29% at 210.2p, Sainsbury's gained 0.16% to 243.9p, while Morrisons added 0.4% to 224.2p.