Omaha Police Department's Child Victims Unit is investigating a man's involvement in the sexual assault of two juveniles.
Robert Martinez Jr., 56, was babysitting both victims at the time of their assaults, according to authorities.
Detectives are concerned that there could be other unidentified victims.
Anyone who suspects their child has been the victim of sexual assault should contact the Project Harmony Child Advocacy Center at 402-585-1326 for advice on how to discuss this with your child.
Additionally, if your child has spoken up about incidents of sexual abuse, call 9-1-1 or contact a detective at 402-444-5636.
Reports can also be filed with Child Protective Services at 1-800-652-1999.
Martinez has been booked on two counts of 3rd degree sexual assault of a juvenile.