A Petaluma high school canceled classes Thursday because of a social media post sent to students that referred to a shooting and contained photos of guns, according to authorities.

The Yuma Union High School District canceled classes at one of its schools after a social-media post began circulating among students about a possible school shooting on Tuesday. The district said ...

UPDATE: 2 kids charged with school shooting threats. Multiple N.J. schools closed. The Woodbury City school district canceled all classes on Monday following a social media threat. “While we do ...