By Suzanne Monaghan

PHILADELPHIA (CBS) – Philadelphia police were investigating the discovery of a woman’s body that was pulled from the Delaware River on Thursday.

Marine units pulled the body from the water near the 200 block of South Christopher Columbus Boulevard close to the Hyatt Regency along Penn’s Landing just before noon.

The body was that of an Asian woman believed to be in her 20s.

Police said there were no visible signs of trauma. An autopsy was expected to be performed to determine the woman’s identity and her exact cause of death.

The discovery remained under investigation.