Related: Hancock warns public must take ‘personal responsibility’ to get new strain of coronavirus under control

Eurotunnel at Folkestone and Dover ferry port shut to outbound traffic as ministers scramble to react

The UK faced a freight crisis as Christmas week dawned, after France and other European countries locked down their borders in a bid to prevent the spread of a new, virulent strain of Covid-19.

Businesses feared drivers would be stranded in Britain, and that goods would be blocked from either leaving or entering – causing food shortages and potentially forcing them to close.

After Boris Johnson imposed strict tier 4 coronavirus restrictions on London and southeast England on Saturday, the UK’s neighbours responded by banning British travellers from crossing their borders for fear that the novel virus variant would spread. Matt Hancock, the health secretary, admitted on Sunday it was “out of control” within the UK.

France’s block will last for at least 48 hours and has forced Dover’s ferry port and the Eurotunnel to close to traffic leaving Britain. Germany, Ireland, Austria, the Netherlands, Italy and Belgium also have restrictions in place; late on Sunday Saudi Arabia reportedly announced its own crackdown.

It left Westminster scrambling on Sunday night. A Number 10 spokesperson said: “The prime minister will chair a Cobra meeting tomorrow to discuss the situation regarding international travel, in particular the steady flow of freight into and out of the UK.

“Further meetings are happening this evening and tomorrow morning to ensure robust plans are in place.”

Grant Shapps, the transport secretary, urged the public and hauliers to avoid driving to ports in Kent where he said ministers expected “significant disruption”.

He said: “Tonight’s suspension of accompanied freight traffic from the UK to France has the potential to cause serious disruption to UK Christmas fresh food supplies – and exports of UK food and drink.

“Continental truckers will not want to travel here if they have a real fear of getting marooned. The government must very urgently persuade the French government to exempt accompanied freight from its ban.”

Retailers also demanded a rapid resolution to the escalating chaos. “This is a key supply route for fresh produce at this time of year: the channel crossings see 10,000 trucks passing daily during peak periods such as in the run up to Christmas,” said Andrew Opie, director of food and sustainability at the British Retail Consortium.

“We urge the UK government and the EU to find a pragmatic solution to this as soon as possible, to prevent disruption for consumers.”

Immediate shortages should be averted because shops have stocked up on goods ahead of Christmas, he said.

“However, any prolonged closure of the French border would be a problem as the UK enters the final weeks before the transition ends on 31 December,” he added.

“Shoppers should not panic buy,” said Alex Veitch, general manager at Logistics UK. “Retailers will be making every effort to ensure there is stock within the system, including fresh produce,  and it is important that we remember that inbound traffic still has access to the UK.

“We are maintaining close contact with UK government to ensure that supplies of fresh produce are available throughout Christmas and the New Year.”

Logistics UK said it was urgently seeking more information from its members to ensure drivers are safe.

Labour’s shadow minister for the Cabinet Office, Rachel Reeves MP,  said the closure of trade routes to mainland Europe was “deeply worrying”. 

She added: “The country needs to hear credible plans and reassurance that essential supplies will be safeguarded, including our NHS, supermarkets and manufacturers with crucial supply chains.

“We cannot afford the same slowness this government has displayed throughout this pandemic. The Prime Minister must urgently explain what he is doing to get a grip on the situation.”

The spread of the new Covid-19 strain saw Britain record its highest ever one-day rise in infections on Sunday, with 35,928.

Mr Hancock has suggested that because of the threat, parts of England could remain under tier 4 restrictions for months, until a large proportion of the population has been vaccinated.

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News – Freight crisis as new Covid strain leads France to ban travel from UK