Two 13-year-olds arrested in Florida for allegedly making threats against schools on Snapchat

Two students were arrested for allegedly making two threats each against public schools in Broward County, Florida, both before and during the first week of school.

A 13-year-old boy was arrested on Saturday, August 10, after allegedly posting a partial photo of himself on Snapchat “that included a written threat to commit mass murder against BCPS officers in Fort Lauderdale.”

According to authorities, he was upset about the new cell phone rule for students, which requires that the devices be turned off or in airplane mode all day, including during lunch breaks.

“The teenager was located at his home in Weston and taken into custody the same day,” the Broward Sheriff's Office said in a press release Friday.

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Then, on August 15, a girl of the same age also made threats against Cooper City High School via Snapchat. The sheriff's office did not elaborate on the details of this incident.

Broward County Public Schools began classes on Monday, August 12.

“This is not a joke to be laughed at,” Sheriff Gregory Tony said at a press conference in early August. “If you make threats on social media or anywhere else, we will track you down and arrest you.”

Both teens face charges of sending written threats to kill, assault, mass shooting or terroristic acts. Both teens also face charges of using a two-way communication device to commit a crime.

“It's unfortunate that this happens more than once every school year,” Tony said at the press conference earlier. “Don't let your children make a mistake and get a felony arrest on their record that they'll likely never get rid of.”

This article was originally published on NBCNews.com.