A makeshift memorial for murdered comedian Eurydice Dixon has been vandalised ahead of nationwide vigils.
Police say paint markings were found at the site of the memorial in Princes Park in Carlton during routine patrols about 3.50am on Monday.
A number of items were seized from the scene and the dog squad has been through the area.
"Police will ensure the markings are removed as soon as possible and the investigation is ongoing," a Victoria Police spokesman said.

Firefighters clean graffiti painted at the memorial site of murdered Melbourne comedian Eurydice Dixon at Princess Park in Melbourne Source: AAP
It comes as thousands of men and women hold vigils across the country on Monday in tribute to Ms Dixon, five days after the 22-year-old's body was discovered on Princes Park soccer field at Carlton North, prompting an outpouring of grief and anger about violence against women.
"We all should be able to walk home, whenever we want, wherever we want, and assume we will make it home safe," the organisers of Monday night's Reclaim Princes Park vigil said on Facebook.
"Our bodies are not there for taking. It is not up to us to keep ourselves safe when we know it's up to men to choose not to inflict violence upon us."
Vigils are expected in Melbourne and regional Victoria, as well as Sydney, Adelaide, Perth, Hobart and Launceston on Monday.
Ms Dixon was raped and killed on her way home from a comedy show at the Highlander Bar in the CBD on Tuesday night.
She reportedly sent her boyfriend a message saying "I'm almost home safe", but never made it.
Jaymes Todd, 19, later handed himself into police and was charged with her rape and murder.

Eurydice Dixon was raped and murdered as she walked home in Melbourne. Source: Facebook/Funny at the Brunny
The City of Melbourne, state government and police are expected to meet on Monday to discuss community safety following the incident.
"This is a tragic reminder, if we needed any reminding, that violence against women is still a feature of contemporary Victorian society. We shouldn't settle for that," Premier Daniel Andrews told reporters on Sunday.