Checkpoint in Sana’a

An army trooper stands while manning a checkpoint at a checkpoint in Sanaa...An army trooper stands while manning a checkpoint at a checkpoint in Sanaa August 5, 2013. Britain and France extended the closure of their embassies in Yemen on Monday after a U.S. warning of a possible militant attack in the region, and the Arab state said it was stepping up security at ports and airports. REUTERS/Khaled Abdullah (YEMEN - Tags: POLITICS MILITARY)

Khaled Abdullah/Reuters

A soldier mans a checkpoint in Sana’a. On Monday, Britain and France extended the closure of their embassies in the Yemen capital after a US warning of a possible militant attack in the region. The Arab country has stepped up security at ports and airports.