Struggling retailer JJB Sports is to place its lifestyle division into administration, putting 77 stores and up to 800 jobs at risk.

The UK company said the Original Shoe Company (OSC) and Qube footwear outlets had continued to trade "at a substantial loss", leaving it little option but to call in KPMG as administrators.

OSC retails branded lifestyle clothing and footwear from 64 stores, while Qube sells fashion footwear from 13 outlets.

Both chains had been under review by JJB for months, with a potential sale of the businesses falling through last October.

JJB said it remained "hopeful" that a buyer could be found for either or both businesses.

Meanwhile, the company has reacted to recent newspaper speculation by confirming that it has received approaches for its fitness clubs division.

JJB said it had received "a number" of non-binding indications of interest, but stressed that there could be no certainty that a sale would result.

Analysts regard the sale of the fitness clubs division as vital to the survival of the JJB business.

Shares in the company have nosedived over recent months after the company's auditors expressed reservations about its ongoing viability.