Police are investigating the circumstances surrounding a burglary in Mount Martha on 10 April.
It is believed an unknown offender has attended the Bradford Drive residence around 9:30am and gained entry to the house.
A short time later the offender was confronted by the resident, where the offender has pulled out a weapon before fleeing the scene.
Police have released images of a male they believe can assist with their enquiries.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or online at www.crimestoppersvic.com.au