A homicide detective says a woman who was found dead in a park in Melbourne's inner-north yesterday was the victim of a "horrendous crime" and police would not stop until they found the perpetrator.

Key points: Dogwalkers discovered the woman's body about 9:25am on Saturday

Dogwalkers discovered the woman's body about 9:25am on Saturday The cause of the woman's death is not known, but it is being treated as suspicious

The cause of the woman's death is not known, but it is being treated as suspicious A large area of parkland has been sealed off with police tape

The body of the woman, who is yet to be identified, was discovered by dogwalkers among a group of logs in Royal Park in Parkville about 9:25am, Detective Inspector Andrew Stamper told reporters.

The cause of the woman's death has not been determined, and it is not known whether she died on Friday night or Saturday morning, or what she was doing in the park.

Inspector Stamper could not say how old the woman was, the nature of her injuries, or whether there was any indication that she had been sexually assaulted, but described the scene as "horrific".

"It's the death of a woman, sadly, again in our city," Inspector Stamper said.

"This is an horrendous crime, as all murders are, particularly the murders of women."

People walking their dogs off-leash found the woman's body among logs and called police. ( AAP: James Ross )

Police call for community to report 'minuscule' details

Inspector Stamper appealed to the public, including rough sleepers who are known to use the park, to help investigators solve the crime.

"Even if it's the most minuscule piece of information, please contact Crime Stoppers," he said.

"We really need the community's help with this."

"We've got our absolute best people here working on this.

"Our focus as always will be on catching the perpetrator of this horrendous crime.

"I give the community my assurance that we won't stop."

Officers have used police tape to cordon off a large section of Royal Park near North Park Tennis Club and the Flemington Road Cricket Oval.

Forensic officers and SES crews were combing the park for evidence.

Mounted police were patrolling Royal Park this morning. ( AAP: James Ross )

Increased police presence as officers investigate

Parkville's parklands, near Melbourne Zoo and Melbourne University, are popular with joggers, dog walkers and cyclists.

The woman was found near the intersection of busy Flemington Road and Elliott Avenue, which is one of the main links between Melbourne's east and west.

It is about 2 kilometres from where comedian Eurydice Dixon, 22, was raped and murdered in June last year by 19-year-old Jaymes Todd as she walked home from a gig.

In January, 21-year-old Arab-Israeli exchange student Aiia Maasarwe was fatally attacked after she got off a tram in Bundoora in Melbourne's north.

Codey Hermann, 20, has been charged with Ms Maasarwe's rape and murder.

The woman's body was found about 9:25am on Saturday, police said. ( ABC News: Patrick Rocca )

Victoria Police Assistant Commissioner Luke Cornelius said people would notice an increased police presence in the Parkville area, including bicycle patrols and officers on horseback.

He said people should not be deterred from going about their usual activities.

"This is a safe park," he said.

"Melbourne remains one of the safest cities in Australia, if not the world."

The woman's body was found near busy Elliott Avenue. ( ABC News: Patrick Rocca )

North Park Tennis Club head coach Gabriel Moise said it was "pretty scary" to learn of the discovery of the woman's body.

"It's very bad … it's pretty confronting," he said.

He said more lighting was needed in the area.

"It is fairly dark in the morning. When I open up here [at the tennis courts] it's pitch black," he said.

Anyone with information is urged to contact Crime Stoppers on 1800 333 000.