The Manatee County Sheriff's Office arrested two Lakewood Ranch Preparatory Academy students for making written threats about a school shooting Wednesday.

The sheriff’s office charged all three students with making written threats to kill, a second-degree felony. “Be ready for tomorrow, I will kill u bruh,” the sixth grader from Buffalo Creek Middle School wrote on an instant messaging app on Tuesday, according to the sheriff’s office.

A student has been arrested for online school threats to multiple high schools, the Pasco County Schools said.