A police shooting at Mareeba is under investigation.
Officers were called to a Love Street home on 11.30am Saturday, following reports a man had threatened self-harm.
Negotiators were notified to attend the scene and spoke with the man who allegedly had a woman with him and refused to let her leave.
Around 3.30pm, it is alleged the man advanced on specialist officers whilst armed with a knife.
Police shot the man.
Immediate first aid and CPR was provided however the man died at the scene.
A crime scene has been declared and police investigations are continuing.
Circumstances surrounding the incident will be investigated by the Ethical Standards Command on behalf of the State Coroner, and the investigation is subject to oversight by the Crime and Corruption Commission.