A student opened fire inside Antioch High School, shooting two other students and then himself, the authorities said. A female student and the shooter were killed, officials said.

Police said a male student shot two people at the high school on Wednesday morning before turning the gun on himself.

School threats are on the rise after a Jan. 22 shooting left two dead, including the shooter, and one injured at Antioch High School. It's been a little more than a week since 16-year-old Josselin Corea Escalante was killed and a 17-year-old classmate was injured after another 17-year-old boy opened fire and later shot himself in the school cafeteria,

The Metro Nashville Police Department opted to permanently add a third school resource officer to Antioch High School as students return Tuesday.

Threats against schools and institutions are taken very seriously by the MNPD. Those responsible, once identified, will be prosecuted.”