A pair of screenshots posted on social media prompted increased security at all Paterson schools Wednesday.

The first message said, “I might shoot up EHS on Wednesday at 12:47 to make my list clear.”  The second message identified JFK High School.

Paterson school officials says that they issued a shelter in place once they were alerted about the threats. Students at East Side High School had their bags checked before coming in, but school activities went on as normal. Outdoor activities were moved inside as a precaution.

Officials say that they are working with the Paterson Police Department and the Passaic County Prosecutor’s Office to find the person responsible for making the threats.

The message that referenced “EHS” was circulated around the state and led to increased security at other New Jersey schools, including at schools in Elizabeth.

Classes are expected to resume as normal Thursday morning.