Sandwich and coffee chain Pret a Manger is to permanently shut 30 of its stores after footfall was hammered by the coronavirus lockdown.
It is understood that at least 1,000 jobs are at risk at the chain as part of the restructuring plan.
The company said recent sales have dived by almost three-quarters – 74% – compared with the same period last year.
Sales and footfall have been hit hard by a heavy reduction in the number of people travelling into city centres for office work, with more people working from home due to the pandemic.
Pret said it will also reduce the number of staff working across its remaining UK stores to reflect the slump in demand.
Chief executive Pano Christou said: "It's a sad day for the whole Pret family, and I'm devastated that we will be losing so many employees.
"These decisions are not a reflection on anyone's work or commitment, but we must make these changes to succeed in the new retail environment.
"Our goal now is to bring Pret to more people, through different channels and in new ways, so that we can continue to provide great jobs and opportunities to our remaining employees."