Authorities were still trying to piece together details of the case.
Kim Jong Nam, who was 45 or 46 and had lived in exile for years, suddenly fell ill at the Kuala Lumpur airport on Monday as he waited for a flight home to Macau. Dizzy and in pain, he told medical workers at the airport he had been sprayed with a chemical. He died while being taken to a hospital.
South Korea has accused its enemies in North Korea of dispatching a hit squad to kill Kim Jong Nam at the airport in Kuala Lumpur, saying two female assassins poisoned him and then fled in a taxi.
