The leak was reported at a large block of flats in Milton Mount Avenue, Crawley, at around 12.21am on Wednesday (January 6) and it has since been declared a major incident, police said. Sussex Police are working with partners including West Sussex Fire and Rescue Service, South East Coast Ambulance Service, West Sussex County Council, Crawley Borough Council and Southern Gas to resolve the incident. Approximately 700 residents have been evacuated and placed in temporary accommodation until the scene is made safe, police have confirmed. A police spokesman said no injuries have been reported. Read more here.
![Emergency services have declared a major incident in Crawley after 700 people were evacuated from a block of flats. Picture: Eddie Mitchell SUS-210601-083042001](https://www.thestar.co.uk/webimg/T0FLMTI4MTIxMzM1.jpg?crop=3:2&width=640)
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Emergency services have declared a major incident in Crawley after 700 people were evacuated from a block of flats. Picture: Eddie Mitchell SUS-210601-083042001 Photo: eddie mitchell
![Emergency services have declared a major incident in Crawley after 700 people were evacuated from a block of flats. Picture: Eddie Mitchell SUS-210601-083031001](https://www.thestar.co.uk/webimg/T0FLMTI4MTIxMzI4.jpg?crop=3:2&width=640)
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Emergency services have declared a major incident in Crawley after 700 people were evacuated from a block of flats. Picture: Eddie Mitchell SUS-210601-083031001 Photo: eddie mitchell
![Emergency services have declared a major incident in Crawley after 700 people were evacuated from a block of flats. Picture: Eddie Mitchell SUS-210601-083018001](https://www.thestar.co.uk/webimg/T0FLMTI4MTIxMzI3.jpg?crop=3:2&width=640)
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Emergency services have declared a major incident in Crawley after 700 people were evacuated from a block of flats. Picture: Eddie Mitchell SUS-210601-083018001 Photo: eddie mitchell