A student is in custody Monday after a threat was made on social media against Adrian High School.

Ann Arbor Public Schools and law enforcement have lifted a school lockdown after investigating an alleged shooting threat at Huron High School.

A man hundreds of miles away is responsible for spotting a threat to shoot up three Macomb County schools.

Taylor High School was placed on lockdown Tuesday after someone discovered a threatening note in a bathroom.

A 15-year-old Lincoln High School student is facing several felony charges after allegedly flashing a firearm at another student during class and threatening to assault her.

A Lincoln high school student told administrators that a 16-year-old boy in her class flashed a gun at her and threatened to pistol-whip her. At least two students said they had seen what they described as a pistol. The incident put Lincoln High School into a brief lockdown.

A 15-year-old student is in custody after making a threat toward another student at Lincoln High School in Warren, officials said.

A South Lyon High School student has been charged for a Snapchat threat in which he said it was “time for Columbine part 2,” according to authorities.

Taylor High School students are being dismissed early Thursday after a threatening note was found in the bathroom, police said.

In the wake of the Oxford High School shooting, questions about what goes on at school once students are dropped off have been everywhere.

An employee of Jefferson Middle School in St. Clair Shores has been arrested in connection to a threat directed at the school.

Oxford Community School buildings are closed for the rest of the week after school officials heard from community members who were concerned for the safety of the students.

A petition demanding Oakland Schools go virtual after the district received several threats has received more than 10,000 signatures.

Oxford Community Schools are closed Tuesday out of an abundance of caution after a threat directed at the middle school was posted on social media.

School and law enforcement have said their best tool to prevent violence in schools is the OK2SAY tipline.

Three more students have been charged in connection with threats directed at high schools in Detroit.

A student at Bloomfield Hills High School has been charged with a one-year misdemeanor for making a threat directed at the school, officials said.

A threat at the Plymouth-Canton Educational Park sent three high schools into lockdown for nearly four hours on Thursday as officers went from classroom to classroom searching for a gun.

A minor is in custody after making a fake bomb threat toward Roseville Middle School, police said.

All three Plymouth-Canton high schools were under lockdown Thursday while police investigated a possible threat, according to district officials.

All three Plymouth-Canton high schools are on lockdown while police investigate a possible threat, district officials said.

Three students from Detroit, Taylor and New Boston have become the latest to be charged in connection with threats directed at schools, prosecutors said.

Walled Lake Central High School is closed for the day on Wednesday after going into lockdown Tuesday over a false report of shots fired.

Romeo High School was placed on lockdown on Monday and had a controlled dismissal after a “concerning” note was found in the restroom, school officials said.

A 15-year-old Monroe Public Schools student has been arrested for posting threats directed at two high schools in an attempt to have classes cancelled, police said.

Romeo High School was placed on lockdown and had a controlled dismissal after a “concerning” note was found in the restroom, school officials said.

A juvenile has been arrested after making a threat that led to the Tecumseh High School winter formal dance being postponed, officials said.

A middle school student from Grosse Pointe Woods has been arrested after admitting to making a school threat as a joke, police said.

A student within Center Line Public Schools was arrested after creating an Instagram account and posting threats, police said.

A 13-year-old boy has been charged with a 20-year felony after he posted a threat directed at a middle school in Waterford Township, police said.

A 16-year-old boy admitted he made a threat that Armada schools could be “next” for an attack because he wanted a day off from school, and now he might face charges, according to authorities.

A girl has been arrested and is awaiting charges after making a threat directed at Stevenson High School in Sterling Heights, police said.

A mother was arrested after telling a Woodhaven bus driver that she would go to her daughter’s high school and shoot someone if her daughter was harmed or threatened, police said.

A Taylor High School student brought a loaded gun to school in a fanny pack and threatened to shoot a security officer, according to police.