Fog grounds dozens more Heathrow and Gatwick flights on one of the busiest weekends of UK winter - More than 200 flights to and from UK airports were cancelled between noon on Friday and Saturday even

More than 1,000 flights were delayed at London Heathrow and Gatwick on Friday as fog created travel chaos for UK airports.

More than 200 flights have been delayed at London airports as heavy fog continues to cause widespread disruption, according to flight tracking data.

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Travelers flying to or from the U.K. are facing further disruptions as thick fog and low visibility restrict air traffic on one of the year's busiest weekends.

Fog could limit visibility to just 100 metres with the worst forecast to descend on South East and central England

Air travellers in the UK faced further disruption on Saturday, as fog that has blanketed much of the country in recent days grounded flights and

Travellers face further disruption at UK airports including Gatwick, Heathrow and Manchester due to thick fog which is set to persist today says the Met Office

Saturday also saw disruption, with a number of ferries between Northern Ireland and Scotland cancelled, speed restrictions in place on some trains in Scotland, a "small number of flights" cancelled at Heathrow Airport due to "strong winds and airspace restrictions", and some road closures in exposed areas.

On Saturday, thick patches of fog could reduce visibility to just 100 metres in some places, the Met Office has said.