The owner of Poundland has said it is preparing to appoint administrators, putting up to 12,000 jobs at risk at the retail chain across the UK and Ireland.

Gordon Brothers is filing a notice of intention to appoint administrators at the high court, with the advisory firm AlixPartners lined up to run the process.

The legal measure, which is expected to be approved by a court on Thursday, protects Poundland from the demands of creditors for 10 days while a solution to its problems is sought.

Gordon Brothers previously rejected a management-backed rescue bid for the discount chain, which operates 600 stores, including Dealz outlets in Ireland.…