A juvenile was charged in Bucks County on Friday with making a fake emergency call about a threat at Council Rock High School South in early October, prompting a 34-minute lockdown that led to a heavy police response.

The incident was part of a wave of swatting incidents in the summer and fall at U.S. high schools and colleges, including two false alarms at Villanova University in late August . Swatting is a hoax report to police intended to create a large-scale emergency response, often at schools and places of worship.

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The Bucks County District Attorney's Office said the charges filed Friday follow an investigation by Northampton Township Police, the DA's office and the

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