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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Mainly dry with some hazy sunshine. Feeling a little warmer, winds a little lighter
Clear spells and showers overnight. Drier and brighter and a little warmer on Saturday. Rain and wind into Sunday morning
Higher risk of sunburn for the first part of the weekend with some late May sunshine