Monterey, Sydney crash: Tragic new details emerge about crash that killed boys, 9 and 10, after car smashed into tree

New details have emerged in the horror smash that claimed the lives of two young boys and injured a young girl, after the car they were travelling in crashed into a tree.

The vehicle hit a tree on The Grand Parade in Monterey, just south of Sydney Airport, at around 9.50pm on Friday.

Police are investigating whether speed was involved as a likely cause of the crash. 

The horrific moment of impact on Grand Parade, Monterey in Sydney’s south was captured on a neighbour’s CCTV 

Residents and other motorists are seen rushing to the scene after the car crashed into the tree

Police are on the hunt for a grey sedan they believe may have been involved in the incident. 

Paramedics arrived at the scene following the crash and treated the two boys aged nine and ten. 

They were taken to Sydney’s Children’s Hospital where they died.   

The other child, a nine-year-old girl was also taken to hospital after she suffered minor injuries. 

CCTV from a neighbouring property shows the horrible moment the car slams side -on into a roadside tree after it has crossed the median strip.

On Saturday, NSW police said a 33-year-old man who was driving the car is currently in hospital under police guard. 

Two young boys were killed in Sydney’s south last night after the car they were both travelling in crashed  into a tree

He is believed to be in a serious but stable condition.  

It’s believed he is the father of the young girl who was injured and is the uncle of the two boys who were killed.

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Police said the grey sedan was seen in the area at the time of the crash. 

‘At this stage we will be seeking the assistance of members of the public to identify a grey sedan that was travelling in lane one around the time of the collision,’ Detective Inspector Jason Hogan from the NSW Crash Investigations Unit said.

The car hit a tree on the Grand Parade in Monterey, near Sydney airport around 9.50pm on Friday

Inspector Hogan said police will be investigating whether speed led to the crash. 

‘That will be a significant line of inquiry for our crash investigators, to establish the speed of the vehicle, and that appears to be…a contributing factor,’ Inspector Hogan said. 

A crime scene has been established. 

Inspector Hogan said police will be looking to conduct an interview with the driver of the vehicle as soon as possible. 

Detectives from the NSW Crash Investigations Unit will investigate whether speeding was a factor in the horror crash, as police hunt for a grey sedan which the allege was involved in the accident

‘Upon medical advice we will be looking to interview and charge him at a later time,’ Inspector Hogan said. 

‘It is a particularly nasty crash where two innocent young children have lost their lives’. 

Locals have regularly complained about ‘drag racing’ along Grand Parade in Monterey.

‘I heard the cries and then I just come out directly and I saw the people start coming out and then I found the car here already and people trying to help the people stuck inside the car,’ an eyewitness said on Saturday morning. 

‘I saw actually the car engine outside here, totally in different place.’ 

A neighbour was also drawn from his house after hearing a ‘massive’ bang.

‘Went outside and there was help at the scene and we tried to go to the right side of the car and pull out the doorway and to do that, the girl came out (and) was crying, … the other side (was) jammed from the impact,’ he told the ABC.

Anyone with information has been urged to contact police or Crime Stoppers on 1800 333 000.