KUALA LUMPUR, Malaysia -- The poison used to kill the estranged half brother of North Korea's leader at a crowded air terminal in Malaysia was the banned chemical weapon VX nerve agent, police said ...

North Korean leader Kim Jong-Uns half brother was assassinated with a lethal nerve agent manufactured for chemical warfare, Malaysian police said Friday. Releasing a preliminary toxicology report on ...

The United States formally concluded Tuesday that North Korea murdered Kim Jong Uns half-brother with the banned VX nerve agent, blasting Pyongyang for deploying a chemical weapon in a packed ...

The banned chemical weapon VX is considered by some experts to be the nastiest of the nasty nerve agents known to exist. With a consistency similar to motor oil, it lingers for long periods in the ...