Watch the horrific moment cars crash head on in Sydney Harbour Bridge carnage, as two die and mum-to-be is rushed to hospital

Horrifying footage has emerged of the head-on collision that claimed the lives of two drivers on the Sydney Harbour Bridge.

Four cars and a bus collided shortly after 1.30pm on Thursday with emergency services arriving at the scene to find one man dead among the wreckage. 

The male driver of another vehicle – who died at the scene a short time later – had to be cut free from the wreckage by fire crews. 

Fortunately, the bus had no passengers on board and the driver was uninjured.

Dashcam footage of a car travelling northbound, exclusively obtained by Daily Mail Australia, captures the entire crash. 

The vision shows a blue Hyundai i30 hatchback travelling in the outside lane before suddenly drifting into the oncoming traffic.

For a few horrifying seconds, it didn’t alter its course.  

It then collided head-on with a silver Mercedes, which spun out of control and smashed into a bus before ended up facing backwards into the oncoming traffic.

Dashcam footage, exclusively obtained by Daily Mail Australia, of a car travelling northbound shows the entire crash. The vision shows a blue sedan travelling in the outside lane suddenly drifting into the oncoming traffic. For a few horrifying seconds it didn’t alter its course

It then collided head-on with a silver Mercedes, which spun out of control and smashed into a bus before ended up facing backwards into the oncoming traffic

It then collided head-on with a silver Mercedes, which spun out of control and smashed into a bus before ended up facing backwards into the oncoming traffic 

Two men have died after four cars and a bus collided on the Sydney Harbour Bridge (pictured)

Two men have died after four cars and a bus collided on the Sydney Harbour Bridge (pictured)

The blue hatchback then smashed head-on into a Hyundai Accent hatchback before it was briefly thrust into the air with the impact.

It then spun around 180 degrees and came to a stop.

The entire front section was completely crumpled as smoke billowed out of the destroyed engine. 

It is unclear which drivers of which cars died in the collision.

Police are now working to notify both of their next of kin. 

Superintendent Clayton McDonald told reporters the blue Hyundai had travelled into the oncoming lane for an ‘some unknown reason’. 

‘The investigation is ongoing, but the Harbour Bridge is covered by cameras which are recording at all times’ he added. 

Two other adults, including a pregnant woman, suffered minor injuries and were rushed to Royal North Shore Hospital where they remain in a stable condition. 

The two other drivers involved will undergo mandatory testing, police said.

Police and paramedics arrived at the scene just before 2pm on Thursday (pictured)

Police and paramedics arrived at the scene just before 2pm on Thursday (pictured)

Scrap metal, shattered glass and liquid from the crash littered both sides of the road

Scrap metal, shattered glass and liquid from the crash littered both sides of the road

All southbound traffic on the bridge came to a halt and only one northbound lane remained open, causing traffic chaos in the city on Thursday afternoon.

Vision from the Harbour Bridge showed two hatchbacks and an SUV with major damage as well as debris spread across several lanes.

In bizarre scenes, a motorcyclist was later arrested on the bridge after he allegedly breached the road block and attempted to drive through the crash scene.

At least five officers were seen pinning the motorcyclist to the ground in vision from the bridge captured by nearby motorists.

‘While many drivers were waiting patiently…a gentleman who was riding a motorcycle entered the crime scene in an attempt to go past and get across the bridge,’ Superintendent McDonald said.

‘That gentleman drove towards police who stood in front of him and were able to stop him.’

Police later arrested a motorcyclist who allegedly breached the road block and drove through the crash scene (pictured)

Police later arrested a motorcyclist who allegedly breached the road block and drove through the crash scene (pictured)

Police erected a blue tent above one of the vehicles involved in the crash (pictured)

Police erected a blue tent above one of the vehicles involved in the crash (pictured)

The incident left one police officer with ‘minor bruising to his leg and some grazes on his hand’. The motorcyclist was taken to Day Street police station. 

Superintendent McDonald said initial inquires suggested the motorbike was unregistered and the rider’s licence was suspended.

He is expected to be charged with ‘numerous serious traffic offences’. 

Delays on the city side of the bridge saw traffic backed up as far as the Anzac Bridge and the Western Distributor with queues stretching as far as 12km. 

Southbound lanes were closed for over an hour following the crash, causing traffic to back up to just south of the Spit Junction. 

Delays could still affect commuters for several hours after two lanes in both directions began to open at 4.15pm. 

Transport for NSW Coordinator-General Howard Collins urged motorists to avoid the area and consider alternative routes, including those travelling to Qudos Bank Arena for the Olivia Rodrigo concert tonight.

‘It will take several hours to clear the backlog of traffic, and this will extend into the evening peak … I recommend you use the rail network or the Metro,’ Mr Collins said.

‘If you do not need to travel this afternoon … do not do it.

‘If at all possible, do use public transport.’

NSW Police said a crime scene had been established. No arrests have been made.

Investigations are continuing. 

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