A teenage girl was arrested Thursday for making threats made against L.D. Bell High School in Hurst, police said.
The girl, who was not identified by police because she is a minor, made threats against the school beginning on Jan. 9, according to Hurst police.
On Jan. 9, electronically transmitted threats went out to more than 15 students and staff members at 9:30 a.m., said Deanne Hullender, a spokeswoman for the Hurst-Euless-Bedford school district.
The threats, which continued for three days, indicated there would be a shooting at the school, Hullender said.
Students were kept in classrooms for about an hour on Wednesday, a school official said.
The messages also mentioned bringing firearms and homemade explosive devices to the school. No evidence of weapons or explosives were found at the school and no actual danger to students or staff was uncovered during the investigation, police said in a news release.
After a three-week investigation, police took the teenage girl into custody on Thursday. She was taken to the Tarrant County Juvenile Detention Facility in Fort Worth and charged with nine felony counts of making terroristic threats.