Marks and Spencer has reported falling clothing and food sales and has warned that it sees little improvement in sales this year.
Overall like-for-like sales, which strip out store openings, were down 2.2% for the six months to the end of September.
Like-for-like food sales fell 2.9% and clothing and home sales slid 1.1%.
M&S warned trading conditions for the remainder of the financial year will remain “challenging”.
“We are expecting little improvement in sales trajectory,” the firm said.
M&S chief executive, Steve Rowe, told the BBC that food was “trading behind our expectations”, but the retailer was “re-shaping” its business, with prices lowered on hundreds of food items.
“What we are doing is making sure we protect the magic of M&S,” he said.
However, he said M&S was “continuing to review” its store closure programme and did not rule out further closures, especially as one-third of its business would be online in future.
Mr Rowe said 32 million people visited M&S stores every year, so the retailer had “a broad range of customers”.
“What we have to do is have a broad range of merchandise available that suits all their tastes,” he added.
In all, M&S plans to close 100 shops by 2022, as announced in May. It says the turnaround is “vital” for its future.
Under its plan, M&S intends to have fewer, larger clothing and homeware stores in better locations.
It says it is facing competition from online retailers, as well as discounters such as Aldi, Lidl and Primark.
Its directors were not awarded bonuses this year because of the firm’s disappointing results.
M&S is attempting to re-shape itself at a time when the High Street is under unprecedented pressure.
Since the start of this year, a number of retailers have collapsed, including Toys R Us, Maplin and Poundworld.
Other stores, such as clothing chain New Look, have announced restructuring plans of their own that involve closing large numbers of outlets.