Toxic chemical workers have now sealed a leaking nerve gas storage container at the Bluegrass Army Depot.
A sarin gas leak was detected earlier this month. Testing shows the it was a small vapor leak, not liquid.
Crews have spent the last few days resealing the leaking plug, as well as the other plugs on the container.
Depot officials say no one was every in any danger. The Army will continue to monitor the igloo.