The US has shut its embassy in Yemen's capital Sanaa, citing "ongoing threats" by an al-Qaeda offshoot linked to an alleged failed US plane bomb plot. In a statement on its website, the embassy urged US citizens in Yemen to be vigilant and aware of security.
It comes a day after top US soldier Gen David Petraeus visited Yemen to pledge US support for its fight with al-Qaeda. There is mounting Western concern that Yemen, the Arab world's poorest nation, is becoming an al-Qaeda haven.
Al Jazeera - Yemen: New frontline for US wars?