An elderly woman with a walking frame has been sexually assaulted at a railway station in Melbourne's south-east.
The 87-year-old woman was waiting for a train at Aspendale about 11am when a man asked her if she wanted money.
When she declined, the man kissed her on the cheek and sexually assaulted her, a police spokeswoman said.
It's believed the offender got on a Frankston-bound train, disembarking at Carrum Station just before midday.
The man is described as Caucasian, with brown hair and a medium build. He also has facial hair.