Pizza delivery chain Domino's hailed more strong sales in the UK today after an even bigger slice of its orders came from the web and smartphones.

The group said like-for-like sales were 6.1% higher in the 13 weeks to June 30, despite strong comparatives from a year ago when Euro 2012 was underway.

E-commerce accounted for 63% of UK delivered sales over the first half of the year, up from 52% a year earlier as the company continues to develop its digital marketing through platforms such as smartphone apps.

Chief executive Lance Batchelor said he was "very pleased" with current trading in the UK and Ireland, adding: "With the majority of our business coming via web and mobile platforms, we are now truly an online retailer."

Despite his optimism, shares fell 7% today after the company said losses from its fledgling operation in Germany will be up to £3 million more than originally thought as it switches corporate-run stores to franchisee management .

Domino's has 825 outlets in Europe, the majority of which are run on a franchisee basis. There are 25 stores in Germany after an acquisition in April 2011.