Police are investigating the discovery of skeletal human remains next to railroad tracks bordering the Schuylkill River Trail in Center City.

A homeless person made the discovery and reported it around 6 a.m., police said.

The remains were found next to a fence under the Market Street Bridge east of the two CSX rail lines that parallel the trail there.

It is not known if the remains are those of a male or female.

The Medical Examiner’s Office will attempt to determine a cause of death and identify the person.