WESTBORO � Westboro High School was evacuated this morning after a student found a note in a boy's bathroom indicating there was a bomb in the building.

Police were called to the school around 10:25 a.m., and students were evacuated to the baseball field. Buses were called in to keep the students warm.

School staff, the Police and Fire departments, as well as the Grafton Police Department, searched the school but found nothing suspicious. The students were allowed in. The disruption lasted an hour.

Police said the bomb threat found this morning was similar to a bomb threat at the school in December, and there is evidence the two incidents may be connected.

Westboro Police detectives and the school liaison officer are investigating.

Contact Donna Boynton at Donna.Boynton@telegram.com or follow her on Twitter @DonnaBoyntonTG