Sandy Cullen:

Madison police and school district officials are taking extra safety precautions following what the principal of West High School described as messages “threatening violence against our school.”

In an email sent to families Tuesday evening, West Principal Beth Thompson said, “We plan to continue our safety precautions tomorrow, including a full search of our building before school begins and additional security personnel and police presence at school throughout the day.”

Madison police Lt. Kelly Donahue said extra officers were at the school Tuesday and will be again on Wednesday.

Related: Police calls to area schools, including data.

Gangs and school violence forum.