The U.N. nuclear agency is poised to gain wider access to inspect facilities in Burma under an agreement expected to be signed Tuesday.

The International Atomic Energy Agency [IAEA] says the agreement, called an Additional Protocol, will allow inspectors to make more unannounced visits to such sites.

The move will help clear lingering suspicions that Burma had been trying to develop nuclear weapons during the country's long military rule that ended last year. North Korea, which has conducted its own nuclear weapons tests, was suspected of working with the Burmese government.

Burma has denied the allegations.