Sydney truck crash victim still critical

A truck crash at Green Square in Sydney left one person dead and five others injured.
A truck crash at Green Square in Sydney left one person dead and five others injured.

One survivor of an "horrific" truck crash in Sydney is still fighting for life while other victims are beginning lengthy recoveries as police continue to investigate what went wrong before the fatal incident.

Five people were taken to hospital after the truck - carrying a load of bricks - carved a path of destruction near Green Square railway station in Alexandria on Wednesday morning.

A 44-year-old woman died at the scene. Her body was unable to be retrieved for hours amid concern a damaged building could further collapse.

The 38-year-old truck driver was taken to Royal Prince Alfred Hospital in a critical condition after requiring a blood transfusion while trapped in his vehicle's cabin. By Thursday afternoon he was in a stable condition.

Two more pedestrians were taken to RPA - one has been released and the other is in a stable condition.

However, a 21-year-old female pedestrian critically injured in the crash remains in the intensive care unit at St Vincent's Hospital. She underwent surgery but remains critical.

Witnesses say the southbound truck clipped a gutter, veered across oncoming traffic and hit a traffic light.

The B-double - with the traffic light still attached to its front - then ploughed through a group of people waiting at a bus stop, hit an abandoned building and finally stopped in the middle of the Botany Road.

NSW Ambulance Acting Superintendent Steve Vaughan said casualties were strewn over 50 metres when paramedics arrived at the "horrific" scene.

The truck driver told police he had a medical episode before the incident.

NSW Police Superintendent Andrew Holland said an investigation would rule on whether that was the case.

Australian Associated Press