Two men and a teenager have been taken to hospital following a melee in The Hills District in Sydney's northwest, police say.
At about 6.10pm on Thursday emergency services were called to a reserve on Withers Road, Rouse Hill, to find two men, both aged 21, with stab wounds.
They were treated at the scene by paramedics before being taken to Westmead Hospital with non life-threatening injuries.
A short time later, a 16-year-old boy was treated by paramedics for minor hand injuries at a home in Schofields.
He was taken to Blacktown Hospital for further treatment.
An investigation is underway and anyone with information is urged to contact police.
Australian Associated Press