Malaysia plans to sweep one of the terminals at Kuala Lumpur international airport for toxic chemicals after Kim Jong Nam was murdered there with a nerve agent last week.

The teams involved include the police forensic team, the fire department and the Atomic Energy Licensing Board, the Malaysian police said in a statement on Saturday.

The sweep will be conducted from 1 a.m. (1700 GMT) on Feb. 26, the police said.

Kim Jong Nam, the estranged half-brother of North Korean leader Kim Jong Un, was killed on Feb. 13 at the airport by VX nerve agent, classified by the United Nations as a weapon of mass destruction, Malaysian police said on Friday.