Ottawa and Ontario Provincial Police have laid more than a hundred charges against three people over allegedly making false 911 calls.

Police say some 28 calls for service in Ontario were "swatting" calls, hoaxes designed to attract police SWAT teams.

The false calls, most of which occurred after Mar. 28, included bomb threats, reports of shootings, suicidal persons and partner assaults.

Police say they identified a 37-year-old suspect using an audio sample and later identified a second, female suspect. They later identified a third suspect.

Police have arrested and charged a 37-year-old man from Toronto, a 27-year-old woman from Etobicoke and a 26-year-old man from Russell County.

The three face a combined total of more than 100 criminal charges, including:

Public Mischief.

Personating a Police Officer.

Mischief to Property.

Breach of Probation.

False Information.

Possession of a Prohibited Weapon.

Gatineau Police also received one false call, police say.