The fast-acting poison made use of in the apparent assassination of Kim Jong Nam at a crowded airport terminal in Malaysia final week was the banned chemical weapon VX nerve agent, according to police. Kim Jong Nam is the estranged half-brother of North Korean leader Kim Jong Un.

The Royal Malaysia Police stated in a statement currently that a preliminary evaluation found VX nerve agent on the eyes and face of the victim, who was allegedly attacked in a departure region of the Kuala Lumpur International Airport and died as he was getting transported to the hospital on Feb. 13. The man was carrying North Korean travel documents bearing the name Kim Chol with a birth date of June 1970 and birthplace of Pyongyang, the capital of North Korea.

Malaysian police officially use the passport identity, Kim Chol, and have requested DNA from household members to confirm the man’s identity. But Malaysian Deputy Prime Minister Ahmad Zahid Hamidi told reporters last week that the North Korean embassy in Malaysia had confirmed the man was Kim Jong Nam, the eldest sibling of Kim Jong Un who has been living overseas for years, according to The Linked Press.

The South Korean Unification Ministry also stated at a press briefing last week that it recognized the victim was “certainly Kim Jong Nam.”

Malaysian police have arrested four men and women in connection with the attack and stated they are searching for extra suspects.

Inspector-basic of police, Khalid Abu Bakar, told reporters on Wednesday the two ladies suspected of fatally poisoning the man were educated to coat their hands with toxic substances and wipe them on his face. Khalid stated the ladies knew what they have been performing and had practiced the attack several times.

“We strongly think it is a planned factor and that they have been educated to do that. This is not just like shooting a movie,” he told reporters, according to The AP.

Here’s what is identified about the deadly toxin that allegedly killed Kim Jong Nam.

VX is a man-created chemical warfare agent that is classified as a nerve agent, the most toxic and swift-acting of the known chemical warfare agents. Nerve agents are equivalent to pesticides in terms of how they operate and the noxious effects, but they are considerably more potent, according to the Centers for Illness Handle and Prevention.

VX Marsbahis is an oily liquid that is odorless, tasteless and amber in color. It has the consistency of motor oil and evaporates incredibly gradually, according to the CDC.

The aging half-life for VX is about 48 hours, producing it the slowest aging nerve agent, according to the ABC News Healthcare Unit.

VX was very first created in the United Kingdom in the early 1950s, according to the CDC.

The nerve agent is banned below the Chemical Weapons Convention, an international treaty which North Korea never signed. Alternatively, the isolated nation has spent decades creating a complicated chemical weapons program that has long worried its neighbors and the international neighborhood.

Like all nerve agents, VX unleashes its toxic effects by stopping the appropriate operation of an enzyme that acts as the body’s “off switch” for glands and muscles. Without this “off switch,” the glands and muscles are stimulated relentlessly. They may tire and no longer be in a position to sustain breathing function, according to the CDC.

VX enters the physique via the skin or inhalation. Its performs quickest if inhaled via the lungs, according to the ABC News Health-related Unit.

Symptoms will seem inside seconds of exposure to the vapor kind of VX for the liquid type, it could take minutes or hours for symptoms to show. Even a tiny amount of this nerve agent can be lethal, according to the CDC.

Symptoms of VX exposure involve blurred vision, confusion, cough, diarrhea, drooling, drowsiness, eye discomfort, excessive sweating, headache, enhanced urination, nausea, fast breathing, runny nose, vomiting, watery eyes and weakness. These symptoms could last for hours just after exposure, based on the quantity.

A victim exposed to a big dose of VX might also practical experience convulsions, loss of consciousness, paralysis or respiratory failure possibly top to death.

Victims exposed to a compact or moderate dose of VX generally recover fully. These who are severely exposed are not likely to survive, according to the CDC.

Death typically happens within 15 minutes immediately after absorption of a fatal dose of VX, according to the ABC News Health-related Unit.

Recovery from VX exposure is attainable with treatment, which consists of removing the deadly toxin from the body as soon as doable and giving medical care in a hospital setting. An antidote can be administered by injection but it need to be utilised rapidly to be powerful, according to the CDC.

“It’s a really toxic nerve agent. Very, quite toxic,” Dr. Bruce Goldberger, a leading toxicologist who heads the forensic medicine division at the University of Florida, told the AP. “I’m intrigued that these two alleged assassins suffered no ill impact from exposure to VX. It is possible that each of these girls were provided the antidote.”

ABC News’ Joohee Cho, Conor Finnegan, Benjamin Gittleson, Matt Gutman, Joshua Hoyos, Maureen Jeyasooriar, Luis Martinez, Gillian Mohney and Joseph Simonetti contributed to this report. The Connected Press also contributed to this report.The Related Press also contributed to this report.

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