Yemen ? A suspected al-Qaida suicide bomber plowed his car Monday into a group of Spanish tourists visiting a temple linked to the ancient Queen of Sheba, killing seven Spaniards and two Yemenis in a part of Yemen known for its lawlessness.

The attack came less than two weeks after the U.S. Embassy warned Americans to avoid the area, which until recent years was rarely visited by tourists because of frequent kidnappings of foreigners.

Witnesses reported seeing a car drive into the group of tourists on a road outside the site of the 3,000-year-old Queen of Sheba temple in the central province of Marib.