The future of supermarket chain Kwik Save and its 3,000 staff is in the balance as a creditor is set to ask a court in Leeds for it to be wound up.
The chain has struggled against cheaper rivals
The firm, which said on Thursday it would close a further 22 stores, was hoping an administration deal would get it out of immediate danger.
But that hearing, scheduled for Friday, is likely to be postponed - while the creditor's case is to go ahead.
Kwik Save closed 79 stores in May, before promising to reopen 19 of them.
The fresh round of closures includes outlets in Dunstable, Bristol, Wakefield and Boston.
The news was a "devastating and deeply distressing blow" to workers who have struggled to keep them going, union leaders said.
It has been reported that Irish entrepreneur Brendon Murtagh is seeking to put together a rescue deal.
The group has now closed a third of its stores across the UK, leading to up to 700 job losses.
The ailing chain will be left with just 145 outlets after the latest closures - a far cry from the mid-1990s when it had more than 1,000 shops worth more than £1bn.
Kwik Save used to be part of the Somerfield supermarket group, but last year Somerfield's owners sold off the loss-making brand and most of its stores to new company BTTF and rebranded the 100 Kwik Save sites that it kept.
Analysts say that Kwik Save had failed to keep up with the competition as big retailers moved into the convenience shopping market.
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