People in Leicester are being advised to buy fireworks from licensed shops.
Last year damaged and dangerous goods were illegally sold around housing estates from vans last year in the county.
Leicestershire Police are warning against any deals which appear significantly cheaper than usual.
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Monday will stay mostly cloudy with patchy rain at times.
A largely dry morning is forecast with limited sunshine.
The Riders of Shaam cycled from Leicester to Luxembourg in their latest challenge.