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Police are searching for a group of young men who allegedly stabbed a teenager after a costume birthday party in Sydney's north-west.
Ezra Faasolo, 19, was stabbed twice before being bundled into the backseat of his friend's car and driven to a nearby petrol station.
The friend, who was dressed as the Hulk, went into the North Richmond business to ask for help.
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"He came inside and asked for my address," petrol station worker Suresh Chirumamilla said.
"So I gave him the address, within two or three minutes ambulance and police were there."
Faasolo was losing consciousness when the car pulled up just after 1am.
The 19-year-old tradie had been stabbed twice in the lower back.
The teenagers had been at an 18th birthday dress up party, which was held in a shed on a property along East Kurrajong Road.
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By 12.30am it's believed the party, which was only meant to have around 50 guests, was out of control.
Dozens of gate crashers reportedly began turning up, which forced the parents of the birthday girl to close the party down before the chaos spilled out onto the street.
Police have been told that is when Faasolo was punched in the head and stabbed two times by a group of young men.
They have been described as being Pacific Islander and fled the scene in a dark car.
Faasolo remains in a stable condition in hospital where he underwent surgery today.
It is not clear why the teenagers left the scene where the 19-year-old was attacked and instead drove 10 minutes away for help but it will form part of the investigation.
Anyone with information can contact Crime Stoppers on 1800 333 000.
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