Police have charged a man after a firearm was allegedly seized during a car search at Killaben Bay near Lake Macquarie today.

Early this morning (Sunday 6 September 2015), a 21-year-old man and a woman attended a home on Angela Close, Carey Bay, and had an argument with a 37-year-old man at the house.

The younger man and woman entered their car and allegedly drove at the older man, who allegedly threw a brick at the car, hitting the windscreen.

The man and woman left the scene. A short time later, the pair returned in a Holden Commodore with two other men.

The 21-year-old approached the man at the house and allegedly threatened him with a firearm. The older man contacted police and the group left the area.

Officers from Lake Macquarie Local Area Command located and stopped a Holden Commodore on Lakeview Street, Killaben Bay.

A consequent search of the vehicle resulted in police allegedly seizing a firearm and methamphetamine (ICE) from in the car.

The four occupants, three men and a woman were arrested and taken to Toronto Police Station.

The 21-year-old man was charged with possess unregistered, unauthorised, and prohibited firearm, possess loaded firearm in a public place, not keep firearm safely, and common assault.

He was refused bail to appear at Toronto Local Court tomorrow (Monday 7 September 2015).

Inquiries are continuing.