Teenage boy is stabbed to death and three others rushed to hospital after wild brawl in western Sydney

A teenage boy has died and three others have been rushed to hospital with stab wounds after a wild brawl erupted in Sydney's western suburbs.  

Police were called to the corner of Suffolk and William street in Blacktown in the city's west around 10pm on Wednesday. 

NSW Ambulance paramedics found four teenagers injured with stab wounds. 

One of the teens was treated by paramedics but died at the scene. 

A teenage boy has died and three others have been hospitalised after a wild brawl erupted in Sydney's western suburbs (pictured, a teenager is treated in the back of an ambulance)

A second was treated by first responders and later transported to Westmead Hospital in a serious condition. 

Two other males were also checked-over at the scene with their injuries not considered life-threatening. 

A NSW Ambulance spokesperson said one of the males was transported to the Children's Hospital at Westmead in a stable condition. 

Six paramedic crews, two specialist medical teams and a rescue helicopter was dispatched to the scene, the spokesperson said.  

'It was a very challenging scene for our team with multiple patients spread out over quite a distance with varying injuries,' NSW Ambulance Inspector Peter Van Praag said. 

'I'd like to thank our colleagues at NSW Police for always keeping scenes like this safe for us to do our job.' 

The ages of the group have not yet been disclosed.  

Police are continuing to investigate the circumstances of the fatal stabbing and have urged anyone with dashcam or CCTV footage of the incident to come forward. 

Police were called to the corner of Suffolk and William street in Blacktown in the city's west around 10pm on Wednesday