Harf did not say how many facilities would close or in what region. She added that the missions may remain closed for additional days.
The American official did not say what threat has led the State Department to adopt such a measure.
The successive explosions took place on Thursday after foreign-backed militants targeted the district of Wadi al-Dhahab with rockets.
The documents illustrate that the NSA expects the UK’s Government Communications Headquarters, known as GCHQ, to act in its interest, expecting a return on the investment, The Guardian said Thursday.