A teenage boy and girl have been charged after a suspected stolen car rammed police cars, sent one officer to hospital and resulted in multiple shots being fired in a dramatic late-night pursuit.

The chase began about 9.15pm on Saturday when NSW police tried to stop a suspected stolen Citroen sedan in Blacktown, in Sydney's west.

When the car failed to stop, police followed it through multiple suburbs to Leichhardt, where it crashed into two parked cars, rammed three police vehicles and drove towards police.

During the stand-off between the occupants and police, the vehicle was reversed into a 27-year-old officer, causing him to fall and hit his head.

He was taken to hospital for concussion and has since been released.

Acting Superintendent Adam Solah said one officer fired their weap

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