An 18-year-old man was arrested after Alberta’s Internet Child Exploitation unit said he allegedly used Snapchat location-sharing data to track two youths he had been victimizing online. The Alberta Law Enforcement Response Team (ALERT) unit said the suspect used the username “max_bxyz” and allegedly knew the youths’ home address and school.

The man had been communicating with the youths online and threatening them into sending sexually explicit videos of themselves, according to ICE. The agency said the youths complied “out of extreme fear for their safety and the safety of their family.” Their families are being warned about the risks of location sharing.

ICE began investigating in August, after a family member of one victim called police. On Sept. 10, Arshdeep Singh, 18, was arrested and charged. The source did not specify the charges.

“This case is a manifestation of every parent’s worst fears and you can appreciate how scary this situation would have been for the victims,” said ICE Staff Sgt. Alison Church. “We want to prevent this from happening and are asking parents to please speak with their children about safe social media usage and at the very least turn off location tracking.”

ICE believes there could be more victims. Anyone with information is asked to contact police or Crime Stoppers. The unit is urging parents and social media users to review location-sharing settings in their apps.

Based on reporting by CTV News Edmonton.