British Airways has cancelled all flights from Gatwick and Heathrow as computer problems cause disruption worldwide.
Passengers have been told not to travel to the London airports because of "extreme congestion" at the terminals, with all BA planes grounded before 6pm on Saturday.
We have experienced a major IT system failure that is causing very severe disruption to our flight operations worldwide.
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A number of schools remain closed in Oxfordshire on Tuesday due to icy conditions. The Met Office has issued a weather warning for ice.
Holly has Tuesday's forecast for the east of the region.
Holly has Tuesday's forecast for the west of the region.