BROOKHAVEN, N.Y. (PIX11) — A high school student was charged on Thursday night with threatening a mass shooting in his school, according to Suffolk County District Attorney Raymond A. Tierney.

The 16-year-old student posted on his Instagram story a threat to commit a mass shooting on Friday, officials said. 

“We take these threats seriously and will devote our resources to ensuring the safety of our children,” Tierney said in a statement. 

The district attorney said he would convene a school safety summit with parents, teachers, school officials and law enforcement to improve the community’s response to school safety threats.

The student was arrested at his home in Bellport at around 7:45 p.m., according to police. Tierney said police searched the student’s home and did not find guns.

The teenager was charged with making a terroristic threat and aggravated harassment. His arraignment was set for Friday in the Youth Part of First District Court in Central Islip.

The incident happened just a few days after a mass shooting in a Texas elementary school, where 19 children and two teachers were killed.