Police are investigating a suspicious fire in the suburb of Norlane in North Geelong overnight.

Press PLAY to hear the full details from police

Police were told five unknown teenagers were seen fleeing the area shortly before the fire broke out on Spruhan Avenue.

An arson chemist will attend the scene this morning to determine the exact cause of the fire.

Anyone who witnessed the incident or has any information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au