Sunday, 05 Feb 2012 08:46
Much of the UK has been affected by heavy snow
By Rob Stanworth
Snow has caused chaos in some parts of the UK, with roads being closed and flights cancelled.
The M25 was closed off between junctions 23 and 25 in both directions after an accident, while the Met Office said that up to 16cm fell in some parts of the country.
At Heathrow, a third of flights have been cancelled, while the train and Tube networks have also been disrupted.
Passengers flying from Heathrow, Gatwick and Stansted have been urged to contact their airline for more information, although at Luton airport, there are no cancellations for Sunday.
Richard Scott, from BAA, told the BBC that it needed to cancel flights in order to cope with the slower pace when the snow falls.
"If you can imagine you're driving, you have to drive slower, leave more space for the car in front in fog, strong winds, snow. It's the same with aircraft," he added.
The snow is due to move eastwards throughout Sunday, but the Met Office has placed most of the UK on an amber alert.