Blackstone-Millville Regional School District closed its high school, so that authorities can investigate a threat made over social media.

After snow fell across Massachusetts overnight, some school districts canceled classes or delayed the start of school on Tuesday.

Six Mid-South school districts and some private schools in the region have been shut down due to a huge uptick in sick students and staff.

President Donald Trump signed several sweeping executive orders on Wednesday to overhaul the American education system, primarily by removing so-called progressive ideologies from school hallways and classrooms.

Jonesville Schools Facebook page. The threat was targeted at Jonesville Middle School, district officials said. Jonesville School administrators could not be reached for comment immediately on Friday.