Like-for-like sales excluding fuel rose 0.8 per cent over the period.
“Convenience remains a strong driver for growth, with sales up nearly 20 per cent year-on-year, underpinned by strong life-for-like sales,” said chief executive Justin King. “Our groceries online business is growing at over 16 per cent year-on-year.”
In contrast, sales at Tesco’s UK stores fell by one per cent in the thirteen weeks to 25 May.
Sainsbury’s market share rose 0.2 per cent to 16.8 per cent over the first quarter.