Global travel alert issued by US after 'al-Qaeda threat'
3 August 2013 Last updated at 01:44 BST
A worldwide travel alert has been issued by the US state department because of an unspecified al-Qaeda threat.
The US has also announced that nearly two dozen embassies and consulates would be shut on Sunday.
Meanwhile, the UK Foreign Office has confirmed that the British embassy in Yemen is to be closed on Sunday and Monday as "a precautionary measure".
Catharina Moh reports.