Police: Girl threatened online 'all them teachers can die'

DAVIE, Fla. (AP) — Authorities in Florida say a 12-year-old girl is under arrest after threatening to kill students and teachers at her middle school and a Florida high school.

The Sun Sentinel reported Monday the sixth-grader at Nova Middle School first denied posting the Instagram messages, then called it a prank. She was arrested by Davie police and the Broward County Sheriff's Office. A police report says one message said "All them teachers can die, that's why I got a gun to kill yall." Another asked "WHO READY TO DIE."

The Marjory Stoneman Douglas High School Public Safety Act makes it illegal to post threats against schools on social media. Arrests of juveniles who make such threats have soared since the shootings of 17 people there in February.