ORWIGSBURG, Pa. -- A rural school district in Pennsylvania that has armed teachers and students with rocks to ward off potential school shooters has arranged for additional armed security in its buildings. Blue Mountain School District Superintendent David Helsel said in a statement posted on the district's website there will be extra security starting Monday and "into the near future."

Helsel says media attention over the district's planned response to school shooters "has increased our concern regarding the possibility that something may happen." He says the district will continue to evaluate the situation moving forward.

He continued writing: "Starting tomorrow and into the near future, we have arranged for additional armed security for our buildings. We will continue to reevaluate this situation moving forward. Please be assured, the safety of our students and staff is of paramount importance to us."

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Last week, Helsel said every classroom in the district about 90 miles northwest of Philadelphia has a 5-gallon bucket of river stones. He said the rocks are one small part of the district's overall security plan.

The superintendent's statement was also posted on the school district's Facebook page: