French supermarket group Casino has said its first-half sales slid 0.2%, hurt by the weak US dollar.

Casino reported sales of €11.01bn (US$12.66bn) for the first half of this year, compared to €11.02bn a year earlier. Analysts polled by Reuters had been expecting sales of €11.04bn.

Casino's domestic sales, which account for around 80% of group turnover, rose 4.7% to €8.75bn in the first half, while international sales fell 15.5% to €2.26bn.

At constant exchange rates, sales rose 5.5%, reported Reuters.