McDonald's reported an 11% increase in sales for the second quarter, crediting what it called "a dramatic new difference in service, taste and relevance".

The rise was the company's highest for five years. However, higher costs pushed down net profits from $497.5m to $470.9m.

Same-store sales across all McDonald's brand restaurants were up 1.2% over the quarter. Same-store sales continued to fall in Europe, with a 1.8% decline over the quarter, while revenues in the Asia, Pacific, Middle East and Africa region fell 6.2%.

Jim Cantalupo, the company's chairman and chief executive, said: "I'm pleased with the strong customer response to our innovative new products.

"But I'm far from satisfied. This upturn reflects only the beginning of our worldwide revitalisation plan."