Truck hits bus in Sydney's west, injuring passengers

A shop security camera today became a red light camera, capturing a semi-trailer run a red light and plough into a Sydney bus

The collision occurred just after lunch time at the corner of Canterbury Road and Cullen Road at Punchbowl in the city's west.

A number of passengers were injured when the heavy impact almost toppled the bus.

"The truck just came through, it was crazy mate," witness Fred Ayoub said.

"I saw people screaming, it was crazy. I automatically called 000, and they came in less than three minutes. I was surprised."

Images, obtained exclusively by 9News, show the heavy impact as the truck t-bones the bus, its wheel lifted from the ground.

Another camera angle shows the truck careering through the intersection while other drivers realise it's a red light and pull up.

There were only handful of people on the bus but a number of them were hurt, including a woman who suffered facial injuries.

In total ambulances transported five patients to Canterbury Hospital, Liverpool, and St George hospital.

All were in a stable condition.

The truck driver had to be cut from the wreckage and was taken to Canterbury Hospital.

Traffic in the area was disrupted for more than two hours as the bus and truck were removed.

A crash investigation is underway.