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A 12-year-old girl has been charged after for allegedly making a bomb threat at Mattawoman Middle School in Waldorf.
On Tuesday, a school resource officer was alerted to graffiti in a girls' bathroom that indicated a bomb would explode at the school the following day.
School had already been dismissed for the afternoon. Authorities identified the girl as a suspect via security camera footage.
She was charged as a juvenile with making threats of arson and destruction of property.
The school was searched and determined it to be safe.