Shooting reported at a Maryland high school, sheriff's office confirms 'multiple injuries'

There has been another high school shooting, this time at Great Mills High School in Maryland, approximately 60 miles south of Washington, D.C. Details from NBC Washington:

Multiple people were injured in a shooting at a high school in southeast Maryland Tuesday morning, the St. Mary’s County sheriff’s office confirmed.

The situation has been described as “contained” by the St. Mary’s County sheriff’s office. The school district is asking parents NOT to go to the school, but to gather at another nearby high school.

There has been a Shooting at Great Mills High School.  The school is on lock down the event is contained, the Sheriff's office is on the scene additional information to follow.   Parents/Guardians should go to Leonardtown HS for reunification with GMHS students

MSNBC has a short segment with more. 

UPDATE: Great Mills High School in Maryland is on lock down after a reported school shooting. • Sheriff's office is on the scene • School says the "event is contained" • ATF officials are responding to the shooting. pic.twitter.com/xFnVjZSA78

Just last week, the students of Great Mills participated in a walkout to protest gun violence.

Students @GMHS_SMCPS Great Mills High School joined tens of thousands of students nationwide for the #NationalSchoolWalkout to protest gun violence. @thebaynetcom will have the full story. pic.twitter.com/1TsG0T1EnO

Stoneman Douglas shooting survivors are already reaching out to their Maryland peers on Twitter.

We are Here for you, students of Great Mills 💗 together we can stop this from ever happening again https://t.co/bkzL1FcVgu