PHILADELPHIA (WPVI) -- Philadelphia police are investigating a grim mystery in the city's University City section.
This comes after someone found the skeletal remains of a man in the Schuylkill River.
The witness called 911 after making the discovery underneath the westbound I-76 bridge, just before 11 a.m. Tuesday.
The medical examiner's office is now handling the remains.
Anyone with information on this case is asked to call Philadelphia police at 215-686-TIPS.
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