Mr Johnson said the government “will take a decision, no matter how tough, to interrupt that trade, to interrupt those flows, if we think that it is necessary to protect public health and to stop new variants coming in”.
He added: “It may be that we have to do that very soon.”
Currently, hauliers who deliver essentials, such as medicines and food, to the UK are exempt from Covid testing and quarantining to ensure the swift deliverance of goods.
Mr Johnson insisted that applying additional travel restrictions to these individuals would have “knock-on effects”.
