Chemicals, leaking gas, faulty boilers, train derailment, or falling aircraft could all be the cause of life endangering explosions.

• Remain calm.
• Do not spread rumors.
• Be prepared for possible further explosions.
• Stay away from windows, mirrors, overhead fixtures, filing cabinets, bookcases, and electrical equipment.
• Be guided by Police or Fire Department personnel. If evacuation is ordered, proceed to a designated area.
• Do not move seriously injured persons unless they are in obvious immediate danger (of fire, building collapse, etc.).
• Open doors carefully. Watch for falling objects.
• Do not use elevators.
• If requested, accompany and assist persons with disabilities who appear to need direction or assistance.
• Do not use matches or lighters.
• Do not turn on electrical equipment or operate light switches.