MANHATTAN - The medical examiner says an autopsy performed on the fetus found in a Brooklyn teen's bag is inconclusive.

Police say the fetus was alive at birth and then suffocated, but the medical examiner says further testing is needed.

Police identified the mother of the fetus as 17-year-old Tiana Rodriguez, of Bed-Stuy. A security guard at the Victoria's Secret in Herald Square suspected Rodriguez and another teen of shoplifting and discovered the fetus when their bags were searched. Rodriguez allegedly told police she delivered the baby at a friend's house and didn't know what to do.

The bag also contained a pair of pants that were allegedly stolen from the store, valued at $44.50. The two girls were arrested on shoplifting charges Friday and both have pleaded not guilty.

Rodriguez was released on her own recognizance. Police say she could face more charges, pending further results from the medical examiner.