The big supermarket chains are showing signs people could be starting to stock up ahead of the expected announcement of new national lockdown restrictions.

Prime Minister Boris Johnson is expected to make a statement to the nation on TV on Tuesday.

New restrictions have already bee brought in - including a ban on gatherings larger than six and businesses having to take data for track and trace.

Now Mr Johnson is expected to warn there could be more ahead - with the potential for a national 'circuit break'.

That could mean a two-week partial lockdown, with some businesses closed, people told to work from home and 10pm curfew on pubs and restaurants.

According to The Mirror Tesco, which has doubled its online shopping capacity to 1.5million slots a week, is now fully booked until Wednesday.

The report says Ocado now has a three-week waiting list for deliveries and Sainsburies is seeing 'high demand'.

Andrew Opie, head of food and sustainability at the British Retail Consortium, said: “We urge consumers to be considerate and shop for food as they would usually during this difficult time.”

One supermarket worker told The Mirror: “Some people are definitely panic buying again. We have 4,000 more items this weekend than we usually would.

“We have seen an increase in people over the last few weeks.

“When the panic buying started months ago, we hadn’t experienced it. We are prepared now.”

At four big name supermarkets in London yesterday many items were running low - including eggs, kitchen paper, pasta and wet wipes.

At one branch of Asda a man was buying five 16-roll packs of toilet paper and four 5kg bags of rice.

The shopper, who did not want to be named, said: “I’m not panic buying, I’m preparing. I’m an old man, I can’t be going to the shops every day. I couldn’t get a delivery slot for today.”

Morrisons has tightened social distancing rules at almost 500 stores.

Shopper Ceri Marshall, 53 admitted she took her mum shopping after hearing about panic buying.

She said: “One of the girls in work told me it was going on and they were running out of toilet roll at Asda.

“I hope people don’t start to panic buy, it just makes it worse for everyone.”

Mum Lisa Patterson, 33, admitted she had stockpiled last time but said she would not be doing it again.

“It is a bit daft and I’m not sure people will be so daft this time,” Lisa added.

And retired carpenter Cyril Draper, 92, said: “It is crazy – I’ve lived through a lot and you won’t catch me panicking.”