Local and federal authorities are saying they thwarted a mass casualty attack Monday morning with the arrest of a 21-year-old ...

Authorities in Texas said on Monday that they have thwarted a "mass casualty attack" after arresting a suspect who allegedly ...

Authorities in Texas said they thwarted a "mass casualty attack"and arrested a 21-year-old on charges of making terroristic ...

A "mass casualty attack" was thwarted by Texas officials after learning a suspect allegedly made terroristic threats against police officers.

Evidence suggests their intent was to carry out acts of violence at a school in the Spring Branch Independent School District ...

Two teenage girls are in custody after the FBI became aware of a potential mass casualty attack early this week, law ...

Two teenage girls in Texas are accused of plotting a “mass casualty attack” with pipe bombs and guns. Police say the girls, ...

The FBI arrested two teenage girls plotting a “mass casualty attack” using pipe bombs and guns targeting Memorial High School ...

Two teenage girls were arrested on Tuesday, Feb. 18, after allegedly plotting a 'mass casualty' attack at Memorial High ...

Andrea "Seth" Lozano Gregori allegedly planned an attack in Corpus Christi similar to the 2016 ambush on Dallas police.