- Watch Sam Holder report:
Thousands of passengers have been affected after British Airways cancelled all of its flights from Heathrow and Gatwick airports.
A problem with the airline's IT systems caused long queues, delays and eventually the cancellation of flights.
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A group called Reformed East Sussex are drawing on their own experiences of crime and addiction to help others build a brighter future.
Some of the issues brought up by residents include fire doors that will not close and fire alarm systems showing faults.