Crews with rail operator CSX and Kentucky officials are working to remove train cars and spilled material at the site of a derailment that sparked a chemical fire and prompted home evacuations.
The South Korean announcement — which will likely infuriate North Korea — came hours after the North claimed to have placed a military reconnaissance satellite into orbit.
North Korea claimed to have successfully placed a spy satellite into orbit with its third launch attempt this year, demonstrating the nation s determination to build a space-based surveillance system.