VX nerve agent used to kill Kim Jong Nam, Malaysia says

"They probably conducted a lot of tests to come up with a flawless amount that would kill Kim Jong Nam, but not harm the assailants or anyone else nearby in a crowded airport", Kim said.

The presence of the VX agent, which is classified as a chemical weapon of mass destruction by the United Nations, was found in swabs taken from Kim's eyes and face.

Kim Jong-nam died on February 13 after being attacked at Kuala Lumpur International Airport by two women, who are seen on CCTV footage shoving something into his face.

Malaysia on Thursday requested Interpol to put an alert out to apprehend four North Korean suspects in the murder.

Police say two women approached the victim in a crowded airport terminal in Kuala Lumpur and wiped a liquid on his face on February 13.

He declined to say if they had been used by a foreign intelligence agency. He revealed Friday that one of the women subsequently developed symptoms consistent with having been poisoned.

Meanwhile, Malaysia is still looking to question seven more North Korean suspects believed to be in on the plot, including a diplomat.

North Korea could have up to 5,000 tonnes of chemical weapons stockpiled, South Korean experts claim.

Authorities are now looking into de-contaminating the airport, as the VX chemical could linger on equipment and in airport facilities, Al Jazeera's Looi said.

The letter said: "I hope you cancel the order for the punishment of me and my family".

He said an arrest warrant would not be issued for the embassy official, as he has diplomatic immunity, but that "the process of the law will take place" if the airline official does not come forward.

North Korea vehemently denies any involvement in Kim's death.

North Korea mocks China for 'dancing to USA tune'.

Mustapa said as an ambassador, Kang Chol should not have thrown various allegations to Malaysia and that such an act was an insult to the people of this country.

The revelation that the VX nerve agent most likely caused Kim's death appears to be yet another indication that North Korea could have been behind the mysterious murder.

Khalid said police were still investigating how the lethal agent entered Malaysia. Jong-nam immediately sought medical help, but suffered seizures shortly after the altercation and reportedly died in an ambulance on the way to the hospital.

  • Leroy Wright