Winter weather continues in UK

Frost clings to the statue of Lord Alfred Tennyson as freezing fog surrounds the tower of Lincoln Cathedral Photograph: Christopher Furlong/Getty Images

Snow at Stonehenge in Wiltshire Photograph: Chris Ison/PA

Coal man Donald Blair shovels coal before his delivery round in Bridge of Weir, Scotland Photograph: Jeff J Mitchell/Getty Images

A Royal Mail lorry on the M5 near Kingston Seymour in Somerset. Royal Mail is putting on extra deliveries to cope with the backlog caused by the freezing weather Photograph: Tim Ireland/PA

Footprints on the snow-covered beach in Weston-super-Mare Photograph: Matt Cardy/Getty Images

Aircraft are de-iced outside Terminal 4 at Heathrow airport Photograph: Steve Parsons/PA

Deer are seen on a lake at Whitworth Hall Country Park, County Durham, after several fell through the ice and died Photograph: Owen Humphreys/PA

Passengers walk in the arrivals area as footprints and baggage trolley tracks are reflected in snow in the windows of Terminal 5 at Heathrow airport Photograph: Peter Macdiarmid/Getty Images

A giant igloo in a park in Merton, south-west London Photograph: Rebecca Naden/PA

A car is left abandoned after crashing on a snow-covered road in the Mendips near Wells in Somerset Photograph: Matt Cardy/Getty Images

Rows of suitcases are stacked in Heathrow's Terminal 3 Photograph: Ben Stansall/AFP/Getty Images

A toy Santa Claus is seen through the frosted window of a garden shed near Boroughbridge, north Yorkshire Photograph: Nigel Roddis/Reuters

Stranded passengers sleep on the floor of Heathrow airport's Terminal 3 Photograph: Ben Stansall/AFP/Getty Images

People queue at St Pancras station in north London as Eurostar said services were 'severely delayed' or cancelled Photograph: Lewis Whyld/PA

Alpacas in a field at Abbey View Alpacas, outside Malmesbury, Wiltshire Photograph: Tim Ireland/PA

A man walks his dog down the middle of the road in Blaenau Ffestiniog, north Wales Photograph: Dave Thompson/PA

London mayor Boris Johnson cycles through the snow after a visit to a specialist centre for rough sleepers run by the homelessness charity, Crisis Photograph: Lewis Whyld/PA

Workmen check the points at Monkseaton Metro station after heavy overnight snow Photograph: Owen Humphreys/PA

Snow on the statue of Winston Churchill in Parliament Square Photograph: Akira Suemori/AP