article: Three children have died as one remains in a serious condition after a car crashed into a lake outside of Melbourne this afternoon. The 4WD, containing four children and an adult, crashed into a lake at Wyndham Vale in Melbourne's outer west, just before 4pm. Police believe that all children are under the age of six. According to Nine News reports, one child who died in hospital was aged seven. Another child, who died en route to the Royal Children's Hospital, was aged one and a half. The first child who was pronounced dead at the scene was aged under seven. The relation between the female driver and the four children are not yet known but the woman is currently under police guard in hospital. Scroll down for video . A 4WD containing four children and an adult has crashed into a lake at Wyndham Vale, in Melbourne's outer west . Paramedics work on two of the victims of the crash on Wednesday afternoon. Police later confirmed three of the four children died . The search and rescue team is at the scene to pull the car from the water, which is reportedly about 20 to 30 metres from shore . Locals are shocked as to how the car was able to get into the centre of the lake as it is 'pretty far from the road' The fourth child was flown by air ambulance to the Royal Children's Hospital and remains in a serious condition. The driver was transported via road ambulance to the Royal Melbourne Hospital, according to a Victoria Ambulance spokesperson, and she remains in a stable condition. A police spokeswoman told Daily Mail Australia that officers are yet to interview the woman. 'Police do not believe anyone is still in the lake,' a statement from Victoria police said. 'At this stage the exact circumstances of how the car went into the lake are yet to be determined.' Superintendent Stuart Bateson told the Herald Sun that the search and rescue team is at the scene to pull the car from the water, which is reportedly about 20 to 30 metres from shore. He said further tests will be done in order to determine whether the car had any mechanical defects. Victoria police said that the exact circumstances of how the car went into the lake are yet to be determined . A resident named Michelle told 3AW that her neighbour broke open the back windscreen of the 4WD to save the children . A Victoria Ambulance spokesperson said the children were being taken to The Royal Children's hospital via air ambulance . A resident named Michelle told 3AW that her neighbour broke open the back windscreen of the 4WD to save the children. 'Travis jumped into the water, smashed the back screen of the car and got one little boy out,' she said. 'Then they started working on him.' Michelle also told the radio station the vehicle was driving along Manor Lakes Boulevard and 'just went straight over into the lake'. Another resident, Stacie Buckley, told the Herald Sun she was in complete shock over the incident. 'You would never think something like this would happen in that particular spot. The ponds are pretty far back from the road. It’s just completely shocking,' she said. A local told The Age that 'you'd need considerable force to get the car all the way to the centre of the lake'. Witnesses or anyone with further information about the incident should contact Crime Stoppers on 1800 333 000. Further tests will be conducted in order to determine whether the car had any mechanical defects . The relation between the female driver and the four children are not yet known but the woman is currently under police guard in hospital .
highlights: The 4WD crashed into a lake in Melbourne's outer west just before 4pm .
  There were four children and an adult inside the vehicle .
  All the children are aged under seven years old .
  Three children have been confirmed dead by Victoria police .
  A fourth child remains in a serious condition at hospital .
  A woman has been transported to hospital and is under police guard .
  Police say they are yet to determine how the car went into the lake .
  'Police do not believe anyone is still in the lake,' Victoria police said .
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