A 16-year-old boy has died in hospital after being stabbed during a fight at a party in Sydney's northwest.
Police were called to a home in Ryde just after midnight on Sunday following the brawl that broke out among revellers inside the premises.
A 16 yr old boy has died after being stabbed at an 18th birthday party in Sydney last night. 6 others were also stabbed. (@ash_gillon)— Sky News Australia (@SkyNewsAust) August 7, 2016
Seven people, including the 16-year-old, were stabbed in the altercation.
The 16-year-old boy was rushed to Westmead Hospital in a critical condition and a number of media outlets are reporting on Sunday morning that he has died.
Police said 6 other young people were taken to hospital with stab wounds.
Forensic police are examining the scene and detectives are speaking to witnesses.
No arrests have been made at this stage, police said in a statement.
Superintendent John Duncan from Ryde police station told Fairfax Media the scene at the house was "confronting" in what was normally a quiet neighbourhood.
"At this stage of our inquiries we are trying to establish why the party turned violent," he said.
"A number of people left the party soon after the fight broke out. Our inquiries are continuing and we hope these people will contact Crime Stoppers."
Around 50 people reportedly attended the party and there have been no suggestions that gatecrashers were involved.