Hamilton police have made an arrest in relation to a bomb threat that was called in against an elementary school on Monday.

Officers say a 13-year-old was arrested after police traced the call back to a local address where the youth admitted to making the threat.

On Monday around 2:30 p.m., students and staff at Mount Albion Elementary School evacuated but were later cleared to reenter the building before the school day’s end.

The building was already being used to house staff and students from Saltfleet District High School at the time after that school was also threatened on Monday, and resulted in an influx of people needing to evacuate.

READ MORE: Police investigate several potential bomb threats at Hamilton public schools

Staff and students at Highview Elementary School also faced evacuation Monday following a bomb threat.

Police say there have been 16 threats made against Hamilton schools in the past five days.

“Hamilton Police recognize the importance of school safety and how threats of this nature can be difficult for students, staff, and their families,” Hamilton police said.

“Police take incidents like these extremely seriously and will continue to work closely with school boards to help identify the individuals responsible and lay the appropriate criminal charges where a suspect(s) is identified.”

READ MORE: 4 Hamilton public schools evacuated after potential bomb threats

The Hamilton-Wentworth District School Board (HWDSB) says the safety and well-being of students and staff remains a top priority.

“We take every threat of violence against a school community seriously and have supports in place for student and staff well-being.,” a spokesperson for HWDSB told CHCH News.

Anyone with additional information about these incidents is asked to contact police at 905-546-4925.

READ MORE: Nora Frances Henderson Secondary School evacuated after bomb threat: police