"Christmas is about more than just food, so to avoid disappointment for millions of households during the festive season we urge the government to rapidly extend this programme, both in size and scope, to HGV drivers in all sectors of the retail industry," said Andrew Opie, director of food & sustainability at the British Retail Consortium.

He warned it would take many months before there are enough new British drivers to cover the shortfall.

(Reporting by James Davey and Guy Faulconbridge, Editing by Alistair Smout)