Phoenix, Jan. 18 -- A newborn baby girl was found dead in a women's restroom inside an Amazon distribution center and investigators have located and spoken with the mother, Phoenix police said Thursday.

Sgt. Vince Lewis said police were not commenting on whether the mother is an Amazon employee to prevent her identity from being revealed. No charges have been filed.

Firefighters confirmed that the baby was dead and that the investigation is continuing in consultation with the Maricopa County medical examiner's office, a police statement said.

Amazon said in a statement that the company is working with police to support the investigation and called the incident "terribly sad and tragic."

The company's massive distribution center on the...