Lockdown/Active Shooter Incident Advisories

Programs that issue warnings regarding currently unfolding incidents in which one or more individuals is killing or attempting to kill people in a highly populated, confined area such as a school, place of worship or other public place (e.g., shopping mall, theater), in most cases using firearms and selecting their victims at random. Affected facilities may be under lockdown orders, a security measure taken during an emergency to prevent people from leaving or entering a building.