Americans targeted in Yemen attack
A group of Americans have come under attack in their vehicle outside a restaurant in Yemen's capital Sanaa, though no-one has been injured.
Officials said a bomb was thrown into the back of a pick-up truck carrying Americans, leaving it undriveable.
Reports said a 28-year-old Jordanian had been arrested.
The attack hit the vehicle outside a restaurant in Hadda, a commercial district in the capital. It is not yet known if the Americans were embassy personnel.
Al Qaida's affiliate in Yemen has carried out a number of attacks against foreign embassy staff - most recently in October when militants fired a rocket at a British Embassy vehicle carrying four officials and the deputy chief of mission. One member of staff and three bystanders were injured.