Maryland school shooting: Video shows scene of Great Mills High School

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A school in Maryland is on lockdown after a shooting. The district said the event is contained. An excerpt from a Facebook Live video shows the scene nearby. (Shonita Somerville/Facebook)

Great Mills High School in Maryland is on lockdown after a shooting on Tuesday morning. The district said the event is contained.

The number of injured victims and their condition is unclear, according to the St. Mary's County Sheriff's Department.

An excerpt from a Facebook Live video shows the scene.