The police last week announced early analysis from the investigators revealed that VX nerve agent, a toxic chemical substance was used in the murder of 'Kim Chol', believed to be Kim Jong-nam, the half brother of North Korean leader Kim Jong-un.

VX nerve agent is an extremely toxic chemical substance and was found to be present in the dry swabs of the face and dry mucosa.

Earlier today, a team led by the police in collaboration with the Hazmat and Chemical Biological Radiological explosive team from the Fire and Rescue Department and Atomic Energy Licensing Board (AELB) conducted a sweep operation at the Kuala Lumpur International Airport 2 (KLIA2) from 1.50am and ended at about 3am.

The operation was conducted to ensure that KLIA2 is free of any hazardous materials, Selangor police chief Abu Samah Mat said during a press conference after the sweep.