Published: May 13, 2010 7:29 PM EDT

CHERRY HILL, New Jersey - An investigation is underway following the discovery that an 18-month-old girl has been diagnosed with gonorrhea.

Police are trying to figure out how the toddler contracted the STD.

The child's mother believes that a family friend raped the little girl.

Right now, police are investigating the claim. As of Thursday, May 13, no arrests had been made in connection with this apparent case of sexual abuse.