A truck, a bus and seven cars have collided in a serious crash at the bottom of the South Eastern Freeway in Adelaide.
Nine people were injured in the crash at the intersection of Portrush and Cross roads at Glen Osmond around 3:45pm on Sunday.
Emergency services rushed to the crash site after the truck hit the fountain and rolled over, pinning several cars.
Five people had to be extricated from their vehicles.
Preetmoham Singh had a close call when the truck came careering towards his car at the stop lights on the freeway.
"We heard some noises coming from surrounding and we then checked and saw a truck and a few cars coming towards us and then we moved the car a little bit forward so that we can survive," Mr Singh said.
"We were hit at our back but we were safe at that moment. Like, if we can't move that car, we were the ones under the truck.
"At the moment I'm standing on my legs but I'm shivering on my legs."
His friend Harry Singh was also in his car.
"It was very horrific scene. We were just so close to death," he said.
"It was just like it happens in the movies, it was something same like that."
Haylee Taskis and Devon Woolley were walking to the bus stop when they heard a "big bang".
"We turned around and the truck was already in the middle of the road hitting cars," Ms Taskis said.
"It just sounded like an explosion, metal hitting metal, tyres screeching.
"It was kind of like the whole place was silent for a minute and then everyone realised what happened and everyone was getting out of their cars and pulling over and trying to see what happened and make sure everyone was OK, but yeah, it was a pretty bad crash."
Truck rolls over onto cars
Bus passenger Nikolina Withers was on the way home when the truck smashed into the bus.
"I was on the bus trying to go home... then all of a sudden the bus shook and it was loud and a bit of glass flew at me," she said.
"I look over and there's just some guy, he was fine but like, the window just like blew up next to him and he was freaking out a bit.
"The guy that I was sitting next to took the worst of it and that was just a little cut on his hand. So everyone on the bus was OK, just shock."
She said she saw the truck had rolled over the top of several cars.
Nearby resident Chris Parsons ran out of his home when he heard the crash and saw people rushing to help at the scene.
"The truck flipped and it just scraped the ground," he said.
"Pretty bad. I've seen some accidents but not like this. This is the biggest one I've seen."
Part of Portrush, Cross and Glen Osmond roads will remain closed overnight, police say.
Horrific history at intersection
The intersection was the location of several fatal crashes in South Australia.
They included the death of 41-year-old truck driver James Venning, who died when he slammed into a wall at the intersection in January 2014.
John Posnakidis, 42, was killed by an out-of-control semi-trailer when he was waiting at a bus stop for assistance at the same intersection.
Their deaths were the subject of a coronial inquest, which recommended lower speed limits for heavy vehicles and tougher penalties for drivers who do not use a safety ramp.
In 2014, Thomas Spiess, 57, and Jacqueline Byrne, 41, were killed when a truck smashed into their cars at the bottom of the freeway.
Waste truck company Cleanaway Operations was convicted of eight counts of failing to comply with its health and safety duty.
In May, the Supreme Court dismissed the company's appeal but set aside six of the convictions.
Charges laid against truck driver Darren Hicks, who was seriously injured in the crash, was later dropped.
