**Updated at 3:13 p.m.**

Police say three youths have been arrested in Bathurst, after a threat involving schools in the northern New Brunswick city was posted on social media.

The alleged threat prompted a lockdown of students at the Nepisiguit High School and Place des Jeunes School on Monday morning, but was lifted shortly before noon, and students sent home for the rest of the day.

In a post on their Facebook page, Bathurst City Police say other schools in the municipality were also placed in a "restricted access" mode during the incident.

Police have not said if the three youths were students at the schools, but do say the investigation is ongoing.

The police are thanking school staff for their professionalism during the process to secure students and their collaboration with law enforcement personnel.

They are also commending parents for their cooperation and understanding during the course of the incident.

Melanie Roy, whose daughter is a student at ESN, says there are no words to describe how she felt when her daughter texted her that the school was placed under 'Code Red'.

Roy says she never would have thought such an incident could happen in a small place like the Chaleur region.

Meanwhile, a text message sent to a parent of a Bathurst High School student from the Anglophone North School District says BHS was not in a lockdown situation, but that access points were locked and secured as a precaution as per normal day-to-day procedures.

The message says personnel from the distract and school were in constant communication with their counterparts in the Francophone district to ensure there was no safety concern for staff and students at BHS.

(With files from Max 104.9's Kevin White)