The five security phases, taking into consideration the particular political, geographical and other relevant circumstances of the duty station concerned, are as follows: Phase one Precautionary: Warn staff that the security situation in the country or a portion of the country is such that caution should be exercised. Travel to the duty station requires advance clearance from the Designated Official. Phase two Restricted movement: All staff members and their families will be required to remain at home, unless otherwise instructed. No travel, incoming within the country, will occur unless specifically authorized by the Designated Official as essential travel. Phase three Relocation: Indicates a substantial deterioration in the security situation, which may result in the relocation of staff members or their eligible dependants. Phase four Programme suspension: Apart from staff directly concerned with emergency or humanitarian relief operations or security matters, other internationally recruited staff members who heretofore were considered essential to maintain programme activities will be evacuated. Phase five Evacuation: The decision to initiate Phase Five, declared following approval by the Secretary-General, signifies that the situation has deteriorated to such a point that all remaining internationally recruited staff members are required to leave. (UNHCR)