East Sussex Fire and Rescue Service are currently attending a fire in Churchill Square in Brighton.
A small gas cylinder caught alight in the shopping centre at approximately 8:30am this morning.
The shopping centre has been evacuated and a cordon has been put into place.
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A number of teenagers, aged 13 to 15, from Portsmouth, have been treated in hospital, after taking tablets believed to be diazepam.
Thursday Evening's Pollen Forecast
Thursday night's weather for the east of the region