Police are asking for parents to check their daughters Snapchat apps, after a man allegedly used two different accounts to meet and sexually assault teenage girls.

Earlier this month, Jeffery Guo was arrested for posing as a 16 year old on the app, meeting two teens at the Logan Valley Mall in Altoona, and then raping them at a nearby Motel 6.

Since then police say three more victims have come forward and reported that Guo used two snapchat accounts to contact them “JeffG124” and “AdamG.”

If you see either of those accounts in your daughters’ snapchat contacts you are asked to call the Altoona Police Department.