Police are investigating a horror two-car smash at an Adelaide intersection, which left a woman with serious injuries.

Key points: Six people were taken to three different hospitals after the November 2 smash

Six people were taken to three different hospitals after the November 2 smash The dashcam footage was posted the Facebook page Dashcams Adelaide 2.0

The dashcam footage was posted the Facebook page Dashcams Adelaide 2.0 So far this year, 90 people have died on South Australian roads

Dashcam footage of the crash at Modbury North, north-east of Adelaide, has emerged on social media.

Emergency services were called to the intersection of Montague and McIntyre roads after reports of a collision just after 8:45pm on November 2.

The driver and sole occupant of one of the cars — a 56-year-old woman from Valley View — was taken to the Royal Adelaide Hospital with serious injuries.

Four people in the second car received minor injuries.

Two people were taken to Modbury Hospital, while the other two were transported to the Lyell McEwen Hospital, both north of Adelaide.

The footage was posted to Facebook page Dashcams Adelaide 2.0.

"This is a massive crash and insane speed through the red light," the group posted about the footage.

"Hope that everyone is OK and there are no serious injuries.

"We yet again remind our followers to be careful on our roads and to drive safely.

"The road toll for South Australia is at an alarming rate for the year and behaviour like this needs to stop."

Road toll high in SA

So far this year there have been 90 fatalities on SA roads, compared to 80 in 2018.

There have been 489 serious injury crashes in 2019 so far, compared to 485 throughout all of 2018.

SA Police have conducted several road safety blitzes in a bid to curb the toll following the first six months of 2019.

In that timeframe there were 60 road fatalities, compared with 38 in the same period the previous year, the highest level in almost a decade.