THREE people have been shot and stabbed in a sickening overnight home invasion at a rural property in Sydney’s southwest.

Police were called to a neighbouring property about 11.20pm last night following reports a man and woman, armed with a gun and a knife, had forced their way inside.

Quickly realising they had been sent to the wrong address, officers rushed to the neighbouring building and discovered a horrific scene inside.

A woman was stabbed in the neck and hand, while a man was stabbed in the chest and stomach. A spokesman for NSW Police said they are both in a serious condition. A third male occupant was not injured.

However, as the officers were dealing with the home invasion, a second crime scene was established after a car crashed into a tree on The Northern Road in Luddenham.

The male driver was found suffering a gunshot wound and a woman passenger was uninjured. The driver was taken to hospital, under police guard.

The woman was placed under arrest and taken to Liverpool Police Station where she is assisting with inquiries into the Bringelly home invasion.