UPDATE: Roanoke County school officials say the “Shelter in Place” has been lifted at Northside High and Middle Schools.  The modified lockdown procedures were implemented in response to rumors of a possible weapon at the high school. Officials say the rumor proved to be unsubstantiated, and no weapon was found. While no one was allowed to enter or leave the buildings for several hours, classes continued at the schools. Roanoke County Police Chief Howard Hall says first word of the rumor came from some parents, and they did the right thing by notifying Northside administrators. Investigators took it from there:

PREVIOUS: Roanoke City and County Police were summoned to Northside High School late this morning where students and staff were placed in “shelter in place” procedures. It means no one is allowed to enter or leave the building. The police presence was in response to rumors of a possible weapon at the high school. So far, there is no indication that any weapon is actually inside. Northside Middle School is also operating under “Shelter in Place”.