Weather and travel warnings remain in place for icy conditions across much of England after the widespread snowfall of recent days.
The Met Office has a yellow warning concerning ice in place for all of England, with the exception of the south-west.
It warns that with falls of rain, sleet and snow dying out, there is a risk of icy surfaces and "difficult" travel conditions.
The office has told people to beware of the chance of injuries from slipping while walking on icy surfaces, as well as "some icy patches on some untreated roads, pavements and cycle paths".
Temperatures in the Greater London area are expected to drop to 1C on Friday and parts of the South East could fall to an icy -2C.
The Met Office has forecast that snow could hit south London early on Saturday morning.
Fog is also forecast for parts of the Midlands and the North, along with mist around Glasgow which may pose hazards for motorists.
Heavy snowfall amid Britain's cold snap has already caused travel disruptions across sections of northern England and Scotland.
Temperatures were as low as -6C early this morning in parts of Yorkshire and Cumbria, with yellow warnings set to last through most of Friday.
The Met Office has published advice from the Department for Transport advising people to clear snow and ice from footpaths outside their homes, preferably in the morning.
"You can then cover the path with salt before nightfall to stop it refreezing overnight," the advice says.
It comes after "hazardous" conditions on Thursday caused problems for the ambulance service in Yorkshire, which struggled to keep up with the high demand, while Covid vaccinations were also affected.
Mark Millins, of Yorkshire Ambulance Service NHS Trust, said the bad weather was having a "severe impact" on its operations and urged people to "take extra care" when out walking or driving.
The deepest snow on Thursday was in Bingley, West Yorkshire, and Strathallan in Perth, Scotland, both of which recorded 11cm.
Becky Mitchell, meteorologist at the Met Office, said: "Saturday is the next day we could potentially see some snow."
UPDATE: Met Office issues snow warning for London
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