UK retailer Sainsbury's is acquiring 15 stores from the supermarket group Kwik Save, which went into administration in July.

Sainsbury's completed the purchase of seven of the sites last week and expects to complete on the remaining stores by the end of the month.

The stores, which have an average size of 6,000 sq ft, will be converted and reopened in a phased programme that is expected to see all the units fully operational by Christmas. They are in town-centre locations in the north of England, the Midlands and Wales.

Sainsbury's is to offer former Kwik Save workers at the stores employment under TUPE (Transfer of undertakings protection of employment) regulations.

"This acquisition will bring approximately 90,000 sq ft of new space to our store estate and represents a significant development in our plan to open 100 new convenience stores over the next three years," said Sainsbury's CFO Darren Shapland.