A threatening note, at least the second in three weeks, disrupted the school day at Iroquois Middle School in Niskayuna on Friday.
Shortly after noon, police conducted a sweep of the building with canine units before determining it was safe for the school day to resume. A similar note was found at Iroquois on Sept. 27, resulting in a delay to the school's regular dismissal schedule as police investigated.
Iroquois students sheltered in place in their classrooms, limiting movement within the building, as police investigated the note, which included a bomb threat, according to a message on the district's website.
Rosendale Elementary School, which is near Iroquois, was placed in lock down as a precaution. Lock down limits access from outside the building but allows school activities to continue inside. Rosendale students were brought inside from recess after the note was found, according to the district. The Rosendale lock down was also lifted after police searched Iroquois.
Niskayuna police, Troy police and the Albany County Sheriff's Office assisted in the sweep of the school. The threat was still under investigation later Friday, according to the district.