McDonald's will shut to takeaway customers at 11pm on Tuesday night – but is to remain open for drive-thru and delivery services.
In an announcement posted on Twitter, McDonald's wrote: "Following the government announcements, we are pleased to remain open, but with a few changes.
"We know this is a really difficult time for everyone and we really appreciate your patience and kindness, both with our crew and online."
It then shared an image carrying further information.
The image said: "Our restaurants across the UK & Ireland will be open for Drive-thru and McDelivery.
"Click & Serve through the My McDonald's app will be available at our Drive-thru restaurants.
"Dine-in and Walk-in takeaway service will be temporarily closed in all restaurants from 11pm tonight while we review and verify any additional enhanced safety measures for these services.
"With smaller teams and social distancing in the kitchen it will take longer to serve you.
"Our restaurant teams are working incredibly hard in difficult circumstances, your kindness and patience is greatly appreciated.
"We will continue to keep you updated on any changes through our website and social media channels."
In a statement Paul Pomroy, Chief Executive, McDonald’s UK and Ireland, said: “Following the latest government announcements, our restaurants will remain open for Drive-Thru and McDelivery services and Click & Serve for Drive-Thru, which is available via the My McDonald’s App. Our dine-in and walk-in takeaway services will be temporarily unavailable while we take time to review and reassess our safety procedures with an independent health & safety body.
"This is a temporary change in our operations to allow us to test and validate any additional measures that may further enhance the safety of our takeaway service.
“We will continue to keep customers updated via the My McDonald’s App and our website.”
All primary schools, secondary schools and colleges were moved to remote provision from Tuesday, January 5 following the lockdown announcement, except for children of key workers and vulnerable kids who can attend in person.
Early years - e.g. nurseries, alt provision and special schools - remain open.
Pubs, restaurants and cafes will be forced to shut in England from midnight (January 5) while restaurants can continue delivery or takeaway.
But takeaway or click and collect of alcohol will no longer be allowed, and non-essential retail hospitality and personal care services must shut if not already closed.
Police will have legal powers to enforce through fines and dispersing orders.
Places of worship will stay open for individual prayer and communal worship, but visitors must obey social contact rules and only attend with their household or support bubble.
Zoos and other animal attractions also have to close.
Making the lockdown announcement in a televised address to the nation on Monday night, Prime Minister Boris Johnson warned: "The weeks ahead will be the hardest yet, but I really do believe that we are entering the last phase of the struggle because with every jab that goes into our arms we are tilting the odds against Covid and in favour of the British people.
"Thanks to the miracle of science, not only is the end in sight, but we know exactly how we will get there.
"But for now, I'm afraid you must once again stay at home, protect the NHS and save lives."