Four people are killed when car splits in HALF after driver lost control and smashed it into tree

• Four people are dead and two others seriously injured after a horrendous car accident in Illinois left one vehicle completely split in half 
• All six people were traveling in the same car when it lost control and hit a tree around 2:30pm on Saturday in the town of Hickory Hills 
• 'I have never seen anything like it,' said a witness, before adding 'they just revved up the engine and they just flew into the tree'
• Witness Joanna Proszek told ABC News that one of the victims was a 14-year-old girl
• As of Sunday, none of the victims have been publicly identified
• Two people were pronounced dead at the scene and another two died after being taken to the hospital 
• Police are investigating whether speeding played a possible roll in the deadly car wreck 

Four people are dead and two others are seriously injured after a horrendous car accident in Illinois split a car in half. 

All six people were traveling in the same car when it lost control at 89th Street and 85th Court and hit a tree around 2:30pm on Saturday in the town of Hickory Hills, according to ABC News’ Chicago affiliate WLS. 

'I have never seen anything like it,' witness Joanna Proszek told WLS of what she saw after the crash, which caused authorities to block off the area for most of the day on Saturday.  

'I saw two bodies – one was behind the vehicle that was ripped apart, one was in between, and then the passenger was OK.'

Proszek told the outlet that one of the victims was a 14-year-old girl. 

Proszek, a nearby resident, had heard the sounds of the horrifying crash and ran outside to help. 

'It was bad, tragic. I think they just, like, started flying because there is a hill. So I am thinking they just revved up the engine and they just flew into the tree.'

As of Sunday, none of the victims have been publicly identified, however WLS reports that two people were pronounced dead at the scene and another two died after being taken to the hospital. 

Meanwhile, authorities say they are investigating whether speeding played a possible role in the fatal crash, which left the vehicle torn apart and split in half.

Photos taken by the news outlet shows the back half of a blueish-gray Mercedes SUV, with the rest of the extremely damaged vehicle nearby, airbags deployed and all.

The condition of the two occupants who survived the crash has yet to be disclosed as of Sunday.