Emergency responders rushed to a bus interchange located on North Parade in Mount Druitt.

Upon arrival, they discovered two 19-year-old men with stab injuries.

One of the individuals sustained critical chest wounds and unfortunately succumbed to his injuries at the scene.

Authorities have identified him as Zac McRae.

The other individual suffered a stab wound to his arm and was transported to a hospital, where he remains in stable condition.

He has since been released.

Just before 7am yesterday, police carried out two search warrants in Dapto and Vineyard.

A 19-year-old woman was arrested at the Dapto address and charged with multiple offences, including murder and concealing a serious offence.

Police will allege she drove other offenders to the scene.

The woman was refused bail to appear in court today.