Watch CBS News

Student Planned To Make Mustard Gas At Urbana High School, Authorities Say

URBANA, Md. (WJZ) -- A student at Urbana High School will face charges for his plot to concoct mustard gas at the school after watching a TikTok video on how to make the chemical compound, the Frederick County Sheriff's Office said Thursday.

The high school was evacuated and HAZMAT units responded at 8:15 a.m. Thursday after a student reportedly brought a hazardous substance into the building.

Investigators found that the substance was bleach after a full sweep of the building. After the school was deemed clear, students were allowed to return from Urbana Middle School nearby.

A 14-year-old student was transported by deputies to the Frederick County Sheriff's Office for an interview.

Investigators found that the student had watched a TikTok video on how to make mustard gas, and he then shared the video on Snapchat, telling others he planned to make the substance at school.

The teen will be charged as a juvenile and charges are forthcoming, the sheriff's office said.

According to the Centers for Disease Control and Prevention, mustard gas is a type of chemical warfare agent that causes blistering of the skin and mucous membranes on contact. It was originally weaponized in WWI, the CDC said.

View CBS News In
CBS News App Open
Chrome Safari Continue
Be the first to know
Get browser notifications for breaking news, live events, and exclusive reporting.