"Killer clown" sightings have been investigated by local police in Gatineau, Quebec, Halifax, Nova Scotia, Cape Breton and Bowmanville, Ontario, Toronto, and Ottawa. More reports have spread on Twitter and Facebook.
"I'm having a hard time thinking of anything quite like this phenomenon of evil clowns," says folklorist Prof Timothy Evans.
Since late last summer, "killer clowns" have been spotted from Alabama to Nova Scotia. Schools in Texas and Alabama have shut down, and police have made a handful of arrests - both for people making false reports and for people actually dressing up in clown costumes.
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