Queensland police have shot dead an alleged domestic violence perpetrator who was armed with a firearm at a home north of Brisbane.

After midnight on Sunday morning, officers responded to an alleged domestic violence incident at a house in Narangba after reports that a man was armed and making threats.

The man allegedly made threats towards the police while holding the weapon and an officer shot at him.

Officers immediately conducted first aid and resuscitation but the man died at the scene.

Queensland ambulance service said paramedics assessed a patient in a life-threatening condition. Three people were also transported to hospital in stable conditions.

The Police Ethical Standards Command, with oversight from the Crime and Corruption Commission, will investigate the incident.

Investigations are ongoing.