Police are investigating a terrifying armed robbery at a service station in Perth’s northern suburbs overnight.

The robbery happened about 11.15pm at a service station on Erindale Road in Warwick.

Officers raced to the scene after a man entered the service station and threatened an employee with a firearm and demanded cigarettes.

The employee was not harmed during the incident.

Following inquiries, officers from the rapid apprehension squad arrested a man at a Balga address about 5.30am.

He is now assisting police with inquiries.

Extracted in full from: Warwick service station armed robbery leads to man’s arrest at Balga home | PerthNow