The Met Office has issued new ice warnings as a cold snap sees temperatures plummet to -12C.
The yellow warnings cover much of the country, including much of North England, South West of England, East of England and East Midlands.
Parts of Wales and much of Scotland have also been placed under a yellow weather warning as a swathe of cold air sweeps across the country.
A yellow warning have been put in force from midnight tonight, until 8:30am on Wednesday.
The Met Office is warning of ice patches on untreated surfaces.
Meanwhile the UK Health Security Agency cold weather alerts remains in place until Thursday, with Brits being urged to keep their homes heated to 18C.
The level 3 alert is in place for the North East of England, North West of England, and Yorkshire and the Humber, while a level 2 alert is in place for the West Midlands, East Midlands and East of England for the same period.
Dr Agostinho Sousa, Head of Extreme Events and Health Protection at UK Health Security Agency (UKHSA), said: "As cold weather persists throughout the rest of the week, it is important to check in on the wellbeing of those most vulnerable to the cold.
"Cold weather can have a serious impact on health, particularly older people and those with pre-existing health conditions, as it increases the risks of heart attacks, strokes and chest infections.
"If you have a pre-existing medical condition or are over the age of 65, it is important to try and heat your home to at least 18°C if you can."
People are still recovering form the ongoing snow showers which battered the country on Saturday.
The Met Office said: "Cold air spreading southwards across the UK, following a band of rain, sleet and snow, will bring frequent snow showers to northern, western, and eastern Scotland, as well as parts of Northern Ireland.
"Overnight, these will accumulate on some roads and pavements, with anywhere between a light dusting and several cm of snow possible.
"Between the showers, partially melted snow is likely to freeze on untreated surfaces leading to icy stretches.
Regions and local authorities affected by yellow warnings
East Midlands
East of England
London & South East England
North East England
North West England
South West England
Wales
West Midlands
Yorkshire & Humber
