Key developments in Kim’s assassination investigation

A Malaysian police officer guards the gate of the National Forensic Institute at Kuala Lumpur Hospital in Kuala Lumpur, Malaysia, Sunday, Feb. 26, 2017. Malaysian police ordered a sweep of Kuala Lumpur airport for toxic chemicals and other hazardous substances following the killing of Kim Jong Nam.

Malaysia Warns North Korea to Cooperate With Investigation

Malaysia said Saturday that it would issue an arrest warrant for a North Korean diplomat if he refuses to cooperate with the investigation into the deadly attack on North Korean ruler Kim Jong Un’s exiled half brother. The investigation has unleashed a serious diplomatic fight between Malaysia and North Korea, a prime suspect in the Feb. 13 killing of Kim Jong Nam at Kuala Lumpur’s airport.

The Latest: North Korea says women suspects should be freed

Journalists wait outside North Korean Embassy in Kuala Lumpur, Malaysia, Wednesday, Feb. 22, 2017. The women suspected of fatally poisoning a scion of North Korea’s ruling family were trained to coat their hands with toxic chemicals then wipe them on his face, police said Wednesday, announcing they were now seeking a North Korean diplomat in connection with the attack.