Five New Jersey High Schools received bomb threats Friday morning and at least two were evacuated, authorities said.
Teaneck, Bergenfield, Waldwich, Mahawah and Hackensack high schools all received threats, according to Bergen County authorities.
All of the schools were deemed safe by about 12:00 p.m., authorities said.
"Swatting seems to be a pastime, and I use that term losely, to cause havoc," said one police officer who responded to Hackensack High School.
"It's very time consuming," he said.
Teaneck High School and Bergenfield High School were evacuated after the threats, authorities said.
An automated call from the superintendent of Teaneck schools advised parents of the threat and said all students were evacuated to the Rodda Community Center as a precaution.
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The Bergen County sheriff responded to the school, authorities said.
The Bergenfield Police Department tweeted that students at Bergenfield High School were being evacuated and the bomb squad is responding to the school.
"Bomb threat for BHS. Students being evacuated to a safe location. Police on scene, bomb squad notified and responding," the department wrote on twitter.
In January, eleven New Jersey schools were placed on lockdown or evacuated for part of the day after officials received threats about mass shootings and bombs.
