A group of inspectors from the International Atomic Energy Agency (IAEA) started a second round of on-site investigations Monday into South Korea's uranium and plutonium extraction experiments.

A South Korean official said the inspectors will be looking to make up for what might have been overlooked during the first inspection conducted earlier this month.

The inspectors will first visit the Korea Atomic Energy Research Institute in Daejon Monday and closely review experiment records and other data concerning the production of a minimal amount of enriched uranium in 2000.

During its weeklong stay, the IAEA team is also expected to visit an atomic lab in Seoul to supplement data gathered from the first round of inspections and take a sample of the 0.08g of plutonium extracted in 1982. The group will also seek to find out details surrounding Seoul's revelation that it produced more than 150 kilograms of uranium metal in the 1980s at three facilities.

The IAEA's five-member inspection team arrived in Seoul Sunday.