Terror attacks and armed aggression can be directed at people or vital infrastructure, such as transport systems or the electrical grid. If you are affected, act immediately.

Things to consider:

• Only call if you need to request help, so as not to overload the network.
• Follow instructions from the police, rescue services and government agencies.
• Do not spread rumours or unverified information about what is happening.
• Do not call anyone who may be in danger. You might reveal their hiding place.