A teen with a hand injury is treated by paramedics before being transported to hospital.
A teen with a hand injury is treated by paramedics before being transported to hospital.
A 16-year-old boy has died in hospital and another teen and man have serious injuries after seven people were stabbed at a party in Sydney's north west overnight.

Police were called to a home in Ryde just after midnight following a fight among young playgoers that left six males and a female with stab wounds.

The 16-year-old was rushed to Westmead Hospital in a critical condition but died this morning.

Police are treating the death as a homicide and are continuing investigations.

Another 16-year-old boy and a 20-year-old man were also taken to the hospital and both are understood to be in serious conditions.


Three boys, two aged 16 and one aged 17, and a woman aged 18 were all taken to Royal North Shore Hospital with stab wounds where they are understood to be in stable conditions.

There were about 50 guests at the party, which was at a house just a few houses down from the Ryde police station.

It is understood paramedics were called to the scene first to treat an unconscious person, but then called for urgent police back-up when they discovered multiple stabbing victims and an agitated crowd.

The Police Riot Squad was brought in to deal with the guests, who spilled out on to the footpath — where pools of blood were found, along with blood found inside the house.

Officers cordoned off a bus stop on Victoria Rd, 600m west of where the house party was held, where they discovered a bloody jumper they believed is connected to the stabbings

Police are speaking to witnesses and no arrests have yet been made.

A police spokeswoman said there was no indication to suggest gatecrashers were involved and the reason why the party turned violent is now under investigation.