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Two teenage girls in the US state of Texas have been arrested for plotting a “mass casualty attack” with pipe bombs and guns, police say. <\/p>\n
The girls, ages 15 and 16, were planning an attack at Memorial High School in a suburb of Houston, police told KHOU, an affiliate of the BBC’s US partner CBS News. <\/p>\n
The plot – which was shared on social media – was detailed enough that officials deemed it to be credible, CBS reported. <\/p>\n
The Federal Bureau of Investigation (FBI) said its Threat Mitigation Team was involved in the response to help local police arrest the teenagers immediately. <\/p>\n<\/div>\n
“We are treating this matter with the utmost urgency and commitment, as threats of violence in our schools will not be tolerated,” the Montgomery County Sheriff’s Office said in a statement. <\/p>\n
A letter sent to Memorial High School families said police quickly arrested a student over a “potentially credible threat in the planning stages identified on social media”.<\/p>\n
The school said it was implementing additional safety measures after the incident. <\/p>\n
The sheriff’s office said one of the teenagers, a student at Willis High School in Conroe, Texas, was being held on unrelated charges, while the other, a student in the Spring Branch school district nearby, was in custody in a nearby county. Police have not named the two girls, as they are not adults. <\/p>\n
The students were arrested within 30 minutes of the FBI calling to notify the school about the threat, according to ABC News. <\/p>\n<\/div>\n