MILTON, Ont. – An Ottawa teen is facing 60 charges following an investigation involving police forces from across North America that arose from a bomb threat last month at a school in Milton, Ont.

A Milton teen was arrested and charged with public mischief two days after the April 30 incident that led to the evacuation of Jean Vanier Catholic Secondary School in the community west of Toronto.

Investigating officers say they learned the accused had planned for the threat — which said explosives placed in the area of the school were going to detonate — to be delivered by an “online” acquaintance.

Investigators say they identified the acquaintance as a 16-year-old from Ottawa believed to be responsible for dozens of incidents across North America designed to get a police SWAT team to respond — called “swatting.”

The Ottawa youth was arrested Thursday and faces charges that include public mischief, mischief to property, uttering death threats, and conveying false information with intent to alarm in relation to swatting incidents across the continent.

In addition to Halton Regional Police, the multi-jurisdictional investigation included Laval Police, Quebec provincial police, Calgary Police, and the Federal Bureau of Investigation.

“Swatting is a term utilized online to refer to engaging emergency services with false calls to affect revenge on an individual or organization by causing the response of armed SWAT teams to active shooter scenarios or bomb threats,” Ottawa police Staff Sgt. Rick Baldwin-Ooms said Friday.

“In this case, the subject is a suspect in at least 30 North American occurrences,” he said.

Police did not provide details.

The teen’s home was searched and officers seized data transmission and communication devices, along with firearms and ammunition, Ottawa police said.