Firefighters found this onion bomb hidden in bushes in Salford near where the boys were injured.
They've confiscated it and are warning of the dangers of fireworks.
Onion bombs aren't meant to be available to the public.
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Showers easing Wednesday evening. Largely dry for Thursday and Friday with the best of the sunshine coming through for Polling Day
Remaining rather cool and changeable Wednesday. Most places should have a dry day on Thursday with some sunshine
Chester has a proud political legacy. But now this once-safe Tory seat is one of the key 2015 battlegrounds