A 16-year-old boy was hit by a van after an alleged mass brawl on an estate in Leicester.
A fight involving 20 people was reported in Webster Road, Braunstone, at about 21:00 BST on Friday.
Leicestershire Police said the boy is in hospital in a stable condition.
A man, 26, was arrested on suspicion of drink-driving and causing grievous bodily harm. Two boys, aged 14 and 17, were arrested for affray and released under investigation.
Police say they believe the fight arose “as a result of an argument between residents of the estate”.
A short while later someone reported that a van had hit a boy in Webster Road and had left the scene.
A force spokesman said the National Police Air Service was called to help trace a van and a vehicle was stopped in nearby Hollins Road.