A boy has been charged and another boy was seriously injured during a fight between Mittagong and Picton.
About 6.30 Saturday night police were called to Fraser Street, Tahmoor.
Polce were told there had been a neighbourhood dispute.
A group of boys were fighting with neighbours when something was thrown into the yard causing a
jerry can to catch alight.
The jerry can was kicked away from a vehicle and its contents splashed onto a 17-year-old youth
who had been involved in the altercation.
The youth suffered serious burns to his legs and lower body, and was flown to Sydney
He is currently reported to be in a stable condition.
A 20-year-old man was taken to Liverpool Hospital suffering a suspected broken and dislocated arm.
A woman was treated at the scene for minor facial injuries.
A 15-year-old boy was arrested at the scene and taken to Narellan Police Station.
He was charged with affray and assault occasioning actual bodily harm.
He has been granted conditional bail and is due to appear in court tomorrow.
