The Atomic Weapons Establishment is due at Reading Magistrates Court later over a fire at its site at Aldermaston in Berkshire.
A worker received burns when the blaze broke out in August 2010. The company faces three charges brought by the Health and Safety Executive.
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Thursday morning's weather for the east of the region
Thursday morning's weather for the west of the region
South East Coast Ambulance Service will be put into Special Measures, following concerns raised in a Care Quality Commission inspection.