Summary: A panic alarm was reported at Office 17, located at 711-865 Wellington Road, Manassas, Virginia. The alarm was received from the alarm company as an audible holdup alarm. It was later determined that there had been a power outage at the location, which may have triggered the alarm. The administrator had the 711 location on the phone, but the call was disconnected. Upon investigation, all nine employees on site were confirmed to be safe, and the situation was cleared.