Spate of violent Vic assaults leave 3 hurt

Three men have been assaulted in violent robberies in Dandenong's CBD over a 24-hour period.

Police say the attacks, during the early hours of Tuesday and Wednesday, included two or three men approaching their victims, demanding cash and assaulting them as they tried to run away.

An image of two men they wish to speak to has been released in the hope they can help with the investigation.