"The on-site visit is expected to defuse public worries by having firsthand verification on whether actions have been taken properly on the concerned facility and those who have been exposed in accordance with the safety guidelines at home and abroad throughout the first shipment and to the disposal," the statement read.

Anthrax is a lethal disease caused by the bacterium Bacillus anthracis, which is a toxic substance often used to produce biochemical weapons. In 2001, anthrax-laced letters were mailed to U.S. news media and Senate offices and killed five people.

As part of next week's inspection, the group of people who handled the live sample in April will enter South Korea and perform a demonstration of how it was tested and disposed of then, the ministry noted.

The joint working group will review law revisions aimed at preventing the recurrence of a similar accident and report the result to the joint Status of Forces Agreement committee in December, it noted, adding that it will also delve into ways to step up the allies' cooperation on defense against biochemical weapons, especially from North Korea.

Amid growing public outcry over the inbound shipment of the lethal bacterium, the ministry vowed more fact-finding efforts last week, including the on-site probe of the military lab. (Yonhap)