A teenager who is believed to have carried out four armed robberies along a walking track in Melbourne's south-east over a three week period is being sought by police.
Detectives believe the attacks were carried out by the same offender on the walking path at Gunns Road Reserve in Hallam between August 5 and 29.
Each incident involved the offender approaching women, threatening them with a knife and demanding their possessions.
"The teenager involved in all incidents is perceived as African in appearance, about 15-years-old with a skinny build and short dark hair," a police spokesperson said.
The four incidents police are investigating include:
- August 5, 5.45pm: A 41-year-old Hallam woman was jogging east along the track when she passed a teenager riding a bike in the opposition direction. The teen came up behind the woman, demanding her possessions at knifepoint before stealing her phone.
- August 12, 2.30pm: A 55-year-old and 29-year-old, both from Hallam, were walking up the hill towards the Power Road overpass when they were approached from behind by a teenager. The offender demanded their possessions, however the older woman used her umbrella to fend him off. He ran into bushes.
- August 26, 2pm: A 21-year old Endeavour Hills woman was walking along the track when she saw a teenager riding a bike in the opposite direction. Shortly after, the teen approached her from behind, and demanded her possessions at knifepoint. He stole her phone and fled.
- August 29, 4.30pm: A 55-year-old Doveton woman was running along Kevin Adlard Reserve towards Gunns Road Reserve when she saw a teenager with a bicycle on the side of the track. She kept running and was grabbed on the left shoulder. The woman turned and saw the teen holding a sharp object in front of her. He demanded her possessions, but she ran off. He fled back to his bike and rode off empty handed.
Investigators are urging anyone with information to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au