Conway authorities evacuated Conway High East at about 9 a.m. Thursday morning after a student brought a grenade to school for a classroom exercise.
Authorities on the scene reported that the student had not followed a teacher's guidance on properly identifying what memorabilia would be suitable to bring to school. Authorities gave no indication of intent to do harm on the student's part.
The city's bomb squad personnel are on scene to determine whether the ordnance is "live" and evacuated the school as a safety precaution.
Parents may pick up their children at the campus.