Four Bastrop Middle School students were arrested after a threat toward the school was posted on social media. Bastrop ISD police investigated the threat and determined it was “non-credible,” Bastrop Middle School Principal Tiffany Peirson said in a letter sent to families. “Due to the seriousness of the incident, four of our students have been identified and arrested,” Peirson said in the letter. The district said it was made aware of a screenshot circulating on social media that connected the middle school and “the possibility of a threat.” The spokesperson said a letter explaining the situation was sent to all Bastrop ISD families Tuesday.