WATCH: Police respond to reported shooting at Great Mills High School in Maryland.
— NBC News (@NBCNews) March 20, 2018
Initial reports of the shooting came after classes at Great Mills began at 8 a.m. ET. About 1,600 students attend the school.
We are Here for you, students of Great Mills 💗 together we can stop this from ever happening again https://t.co/bkzL1FcVgu
— Emma González (@Emma4Change) March 20, 2018
BREAKING: Sheriff's spokeswoman says 3 hurt, including shooter, at Maryland high school shooting.
— The Associated Press (@AP) March 20, 2018