A teenage girl who died after being struck by a car in the Hunter Region north of Sydney this morning was walking to the bus stop on her way to school.

Just before 7.30am, emergency services were called to Warrigal Close, Brandy Hill, following reports a 15-year-old girl had been hit by a car.

She was treated by paramedics, but died at scene.

Mourners have started laying floral tributes by the roadside where the teenager was hit by the car while walking to the bus stop. 

The driver, a man believed to be in his 40s, had his two daughters in the car at the time of the incident.

It is believed he stopped his car and went to get help from a neighbour to render first aid but the girl died at the scene. 

The driver was taken to John Hunter Hospital for mandatory blood and alcohol testing and is assisting police with inquiries.

Neighbours told 9NEWS the street was a notorious stretch particularly in the morning with the sun being blinding for drivers.

9NEWS understands the teenage girl often walked to school. 

Officers attached to Port Stephens Hunter Police District with assistance from Crash Investigation Unit have commenced an investigation.

Inquiries are continuing.

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