An Indonesian woman accused in the 2017 killing of the North Korean leader's half-brother is released from custody after a Malaysian court dropped a murder charge against her.

Malaysia expels the North Korean ambassador to the country, declaring him "persona non grata" and asking the envoy to leave Malaysia within 48 hours.

North Korea warns the US will "pay dearly" if it puts Pyongyang on a terror list over the killing of its leader's half-brother, as a suspect in the murder claims he was the victim of a conspiracy.