Freezing fog will be a “serious issue” in the coming days, forecasters have warned, with a weather warning issued for large parts of England.
The yellow weather warning for fog on Sunday covers much of England, including Yorkshire, the South East and the Midlands.
Visibility could dip as low as 50m and forecasters say untreated surfaces may become slippery, leading to an increased chance of accidents or injuries.
Drivers are being warned to expect probable slower travel times, with delays to bus and train services also possible.
There is a chance of delays or cancellations to flights, the Met Office said.
“Freezing fog will lead to difficult driving conditions and could cause travel delays in some areas on Saturday night and Sunday morning,” it added.
A level three cold alert remains in place for England until Wednesday.
Sky News weather presenter Jo Edwards said: “Dense freezing fog is likely to become a serious issue over the next few days as high pressure drifting across southern parts of the country prevents milder conditions becoming dominant.
“Overnight temperatures for the Midlands, East Anglia, and the South East are likely to fall as low as -6C so there will likely be the combined threat of fog and ice.”
Here are the areas covered by the weather warning for fog, which is in place for Sunday from 2am to 11am.
East of England
• Central Bedfordshire
London & South East England
• Bracknell Forest
• East Sussex
• Greater London
• Milton Keynes
• West Berkshire
• West Sussex
• Windsor and Maidenhead
• West Midlands conurbation
Yorkshire & Humber
• East Riding of Yorkshire
• Kingston upon Hull
• North East Lincolnshire
• North Lincolnshire
• North Yorkshire
• South Yorkshire
• West Yorkshire