In a statement posted Saturday on the U.S. Embassy in Kuwait's website, the State Department says potential attacks could include bombings, hijackings, hostage taking, kidnappings and assassinations. It also warned that chemical and biological agents must be considered a possible threat.

The State Department singled out Westerners, oil workers and U.S. contractors working with the military as potential targets. The statement pointed to last month's bombings of three Jordanian hotels as underscoring the desire of terrorists to target places perceived to cater to Westerners.