Howell Public Schools in Livingston County, Michigan, is closed Monday while authorities investigate a possible threat against the high school.
The school district issued the closing notice early in the morning, after learning of “a social media message circulating that referenced a threat of violence against Howell High School.
“As soon as we were alerted to this, an investigation was launched, and law enforcement was involved. At this time, law enforcement needs additional time to thoroughly investigate this matter,” the district said…