A man armed with a knife threatened staff and stole cash from a Dandenong petrol station.
Greater Dandenong CIU Detective Senior Constable Bree Jarvis said the thief entered the Liberty Service Station about 12.10am on Tuesday 29 November.
Brandishing a knife, he demanded money from the staff member behind the counter.
The 21-year-old victim opened the till and the thief removed cash and fled on foot.
He was wearing a black-coloured balaclava and black hooded jumper.
Police officers and Canine Unit members attended shortly after but were unable to locate the thief.
Call Crime Stoppers on 1800 333 000 with any information.
