High street chain Next has blamed unseasonably warm weather for "disappointing" sales figures in the run-up to Christmas.
The retailer said that full-price sales fell by 0.5% in its stores in the 60 days up until 24 December.
Sales at its Next Directory and online catalogue arm rose by 2%, although the company said there had been a slowdown in its Directory business due to poor stock availability.
The company also said that tougher online competition contributed to its trading problems.
Next expects its full-year profits to come in towards the lower end of its £817 million forecast, although this would still be a 4.4% increase on the previous year.
The firm is the first of the major retailers to release its Christmas trading figures.