Charge laid after Sydney stabbing

Brandon Faananu Sia'a. Photo / Supplied

A man has been charged with the stabbing murder of a teenage boy at a railway station in Sydney.

Sixteen-year-old Brandon Faananu Sia'a, of Samoan heritage, was stabbed at Bankstown railway station about 8.50pm on Wednesday and thrown on to the tracks.

Paramedics brought him back on to the platform and attempted to revive him but he died at the scene.

Police charged a 22-year-old Bankstown man yesterday with Brandon's murder.

The man had been taken to hospital with stab wounds on Wednesday night. At a bedside hearing, he was remanded to appear in court on August 3.

Police are confident only one knife was used in the fight.

"We are satisfied now that the 22-year-old male brought a knife to Bankstown railway station," said Superintendent Dave Eardley.

Eardley said it appeared that the victim and the accused were not previously known to each other.

A motive has not yet been established but police have rejected speculation a girl may have been involved. They did not believe the incident was gang-related.

"This is an incident between two people," Eardley said. "We certainly don't have any evidence at hand that would indicate this was gang-related."

Many of the mourners who gathered at an impromptu memorial for the teenager yesterday wore distinctive red garments and spoke of a "crew".

Eardley said a considerable police presence throughout the Bankstown area in recent years, coupled with programmes for local young people, had resulted in a decline in street violence.

- AAP