Malaysian police say the nerve agent VX was used to kill the half-brother of North Korean leader Kim Jong Un.
Investigators found traces of the poison on Kim Jong Nam's eyes and face, police announced Friday.
Kim was killed February 13 at the airport in Malaysia's capital, Kuala Lumpur.
Two women suspects have been detained by Malaysian police in connection with the killing.
One of the women was identified as Indonesian, the other had a Vietnamese passport.
The two women were seen in surveillance footage wiping the chemical on Kim's face at the airport, Malaysian police said.
Kim was preparing to board a flight from Kuala Lumpur to the Chinese territory of Macau, where he has been living.
A North Korean man has also been detained in Malaysia.
Several other suspects are being sought, including an official who worked at North Korea's embassy.
South Korea has accused the North Korean government of being behind the attack.
It says Kim Jong Nam has been under a North Korean assassination order for years.
North Korea has denied involvement in the killing and said it does not trust Malaysian police to conduct a proper investigation.
Security cameras show the two women quickly walking away from Kim in opposite directions after putting the poison on his face.
A Malaysian police official said the women were trained to go straight to washrooms to clean their hands.
He said one of the women got sick and threw up after the attack.
Police said they believe the women were paid to carry out the attack and had practiced their methods in advance.
In the security video, Kim appears unharmed immediately after the attack.
He is seen pointing to his face while speaking with airport officials and guards.
Kim was later put in an ambulance to the hospital, but suffered seizures on the way and died.
What is VX nerve agent?
VX is a highly deadly nerve agent identified as a weapon of mass destruction by the United Nations.
It is banned worldwide except for official research purposes.
Experts describe it as a "very toxic" chemical that can kill even in very small amounts.
VX has no taste or smell. It can be breathed in, swallowed or absorbed through the skin.
In anywhere from a few seconds to a few hours, it can cause a range of symptoms, from vision problems to headaches.
It can also cause other serious conditions, and eventually death.
There is an antidote to VX that can be given by injection.
The chemical can take days or even weeks to completely disappear.
This raised concerns that other people might have come into contact with VX at the airport.
Malaysian police said steps were being taken to decontaminate the airport.
I'm Bryan Lynn.I'm Dan Friedell.
1.surveillance footage 监控录像
Now if the serial number on the laptop matches my receipt, and if my home surveillance footage clearly shows Thad's face, we can be confident the judge would rule in my favor.
The old man had hopped off when the ambulance reached the hospital.
...a mild cardiac seizure.
They gave me an injection to help me sleep.
1.He said one of the women got sick and threw up after the attack.
throw up 呕吐
She said she had thrown up after reading reports of the trial.
The ones who get all quiet and suddenly throw up worry me the most.
2.Police said they believe the women were paid to carry out the attack and had practiced their methods in advance.
in advance 提前，事先
If there is any change about the time of the meeting, please notify us in advance.
They will pay a hundred and thirty francs in advance.
Bryan Lynn为您播报 。。