Travellers warned to take conditions into account as temperatures plummet
Ice took hold in parts of Britain overnight, as temperatures plunged to the lowest of the winter so far in England.
Racing has been abandoned at Lingfield Park in Surrey after an overnight temperature of minus 5.5C (22F) made the track frosty, while Benson in Oxfordshire saw a record low this winter of minus 8.1C (17F).
Drivers have been warned of icy conditions, with a yellow weather warning in place for Yorkshire and Humber, the East Midlands and the east of England until around 10am on Thursday.
Elsewhere Bala in Wales saw the mercury drop to minus 6.7C (20F), and minus 5.9C (21F) in both Katesbridge, Co Down and Eskdalemuir in Scotland.
Met Office forecaster Mark Wilson said: "We would warn people to be aware really and just be considerate of the fact that there could be some icy patches which are on untreated surfaces like pavements, cycling paths and minor roads."
Conditions are set to get milder into the weekend, with daytime highs of up to 10C (50F) in southern parts of the UK, he added.