U.S. officials say the Bush administration will announce the lifting of certain sanctions on travel to Libya later Tuesday.

Officials at the State Department tell VOA the administration plans to lift a long-standing ban on American travel to Libya. The ban has been in effect since 1981.

The move comes two months after the north African country announced it was abandoning all programs related to weapons of mass destruction.

The U.S. government has also said it will lift economic sanctions against Libya if Tripoli fulfills its pledge to dismantle its weapons of mass destruction programs.

Monday in Tripoli, the head of the U.N. nuclear agency Mohamed ElBaradei said Libya wants to keep three nuclear facilities, including a small research reactor, for civilian purposes.

Meanwhile, the Washington Post reports that U.N. inspectors in Iran have discovered more nuclear experiments that Tehran did not disclose earlier.

The Post reports inspectors found that Iran produced and experimented with polonium -- an element useful in initiating the chain reaction that produces a nuclear explosion.

According to the report, Iran acknowledged the experiments but said they were for generating electric power, which is another possible use of polonium.

Some information for this report provided by Reuters.