UPDATE: The Colchester School District issued the following statement just before 4:30:
"As a follow-up to our earlier communications, the Colchester Police Department continues to monitor and address this situation and will keep the district informed if there are further concerns.
Schools occasionally become embroiled in family matters, including custody disputes, personal matters, and other related issues. We proactively initiated precautionary measures in addressing the situation and will continue to do so as necessary. Additional safely measures will remain in place; the district and the police department are working closely together to monitor the situation and to ensure the safely of our students and staff.
We thank the parents, students, faculty, and staff for their cooperation. We look forward to seeing everyone on Monday."