Marks & Spencer upset City analysts today by unveiling disappointing sales figures that cast new doubt on the retail group's recovery.

Fresh from poor clothing sales over the Christmas season, M&S added to the gloom surrounding its recent performance with a 3.4 per cent decline in like-for-like sales for the 11 weeks to March 27.

Worryingly for M&S, the food department - seen as the backbone of its previous success - endured a lacklustre period with same-store sales down 1.4 per cent.

* Full story, see tomorrow's business page.