Teacher in custody after shooting in school and barricading themselves into a classroom

Police in Dalton, Georgia say an adult is in custody after reports of shots fired at a high school. The suspect barricaded themselves inside a classroom, police said, and investigators believe the suspect is a teacher. No students were injured. The incident comes days after President Trump called for arming teachers two weeks after a gunman opened fire at a high school in Florida, killing 17 people.