Hundreds of paramedics, firefighters and police are taking part in a simulation in the port of Dover.
Crews will be cleaning up a simulated chemical spill from a lorry which has accidentally dropped its hazardous cargo.
Officers are keen to stress that this is an exercise so residents should not be alarmed if they hear sirens in the area.
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Did Father Christmas bring you an unmanned aerial vehicle (UAV) or drone for you to fly last night?
Lemurs and Emperor Tamarins at Cotswold Wildlife Park have been joining in the festive spirit.
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