Police say they will confront "all ideologies" after detaining the boys at their homes.
The Met Police says 25 post-mortem examinations were conducted during a three-year investigation.
The 30 vehicles will help the South East Coast Ambulance Service cope with winter demand.
£6m funding for coastal projects
Bid to tackle drivers' 'biggest bugbear'
Kent seal promotion to Division One after thrashing Glamorgan by an innings and 172 runs at Canterbury.
Kent and former England off-spinner James Tredwell retires from cricket after an 18-year career.
Gravesend Reporter 24
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