Boroondara Crime Investigation Unit detectives are appealing for assistance from the public following two robberies.
Investigators have been told a 26-year-old woman from East Melbourne was walking through Birrarung Marr about 10pm on October 2.
Two women approached the victim from behind who threw her to the ground.
She was assaulted and her bag, which contained credit cards and cash, was stolen.
The two offenders left the area and investigators believe they caught a train to Auburn Railway Station.
A 35-year-old woman from Hawthorn exited the train and was followed by the same pair to Queens Avenue, Hawthorn.
They grabbed her from behind and assaulted her before stealing the victim’s phone.
The pair then left the area and returned to the railway station where they boarded an outbound train.
Investigators have images and CCTV of two women they believe may be able to assist with their enquiries.