Fashion retailer H&M has posted a 7% drop in September same-store sales, after consumer spending was hurt by economic worries and warm weather.

The retailer, which operates 2,363 stores, said group total sales including VAT increased by 3% in September compared to the same month the previous year. This growth was helped by the addition of 252 new stores over last year.

The figures mean H&M has seen its comparable store sales fall in four of the last seven months. In August, same-store sales were flat with the prior year, but followed a fall of 6% in July, and a drop of 4% in June. But comparable-store sales rose 2% in May and 11% in April.