A postmortem examination will be carried out on the body of a woman discovered by council workers in a garden bed at a Brisbane park.

The workers were carrying out maintenance and collecting debris at Kalinga Park when they found the body about midday on Wednesday.

Detective Inspector Tim Trezise said officers did not yet know how long the woman’s body had been there, who she was or how she had died. There were no obvious signs of foul play.

He estimated the woman might be in her late 20s but said he could be “out by 10 years either side”.

She didn’t match the description of any missing persons on file, he said, but police hope a family member or friend will soon come forward.

A crime scene has been established off Diggers Road. Police are calling for anyone who might have been in the park on Wednesday morning or Tuesday night to come forward if they saw anything suspicious.