Potomac High School in Oxon Hill, Md., was placed on a lockdown Tuesday morning after authorities found a gun on campus. In other words, a student was found to have a gun and a former student was seen trespassing onto school grounds, police say.

Prince George’s schools spokesman John White said a teacher noticed two boys in a hallway exchanging money and thought it was unusual. She observed that one of the boys wasn’t in uniform and no longer attended the school.

The teacher alerted Potomac High’s school resource officer and administrative team, White said.

The school resource officer then found the 10th-grade student, searched him and found a handgun. The student was taken into custody.

County and state police are still looking for the former student. No shots were fired and no one was injured, said Cpl. Harry Bond, a county police spokesman.

“In the process of questioning that student, the officer found a gun on that student,” Bond said. “He was arrested and the school was placed on lockdown.”

Officers searched the school for the trespasser but he was no longer on the property, Bond said. Police said video shows the former student reported to be trespassing leaving school grounds.

They said the high school was placed on lockdown “out of abundance of caution.” The lockdown started about 9:45 a.m. and continued until after 11:30 a.m.

Prince George’s County Public Schools (PGCPS) in Maryland continues to be the center for corruption and maladministration despite significant investment by the state of  in many ways.  The teacher should be commended for a Great job.

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