| Kim Jong-nam had largely lived outside North Korea since falling out of favour with his half-brother |
South Korea has confirmed that the half-brother of North Korea's leader Kim Jong-un has been killed in Malaysia.
| A van was seen leaving Putrajaya hospital in Kuala Lumpur on Wednesday morning with a police escort |
Mr Hwang said South Korea was "keeping close tabs on North Korea's movements".
Women seen in footage
Mr Kim was attacked while preparing to board a flight home to Macau from the budget airport outside Kuala Lumpur. His death was made public only on Tuesday.The chief police officer of Royal Malaysian police, Datuk Sri Abu Samad, has said investigations are still in progress and that a post-mortem examination is expected to be completed soon.
He said Malaysian officials had not yet formally confirmed the identify of the deceased, as he was using a passport under a different name, Kim Chol.
In response to reports that North Korea had asked to claim the body, he said there had been no official request. Police are studying security camera footage from the airport.
Images circulating in the media have focused on two women seen alongside Mr Kim, who were later seen leaving the scene in a taxi.
Unnamed US government sources have said they believe he was poisoned by North Korean agents.
The director of the National Intelligence Service (NIS), Lee Byung-ho, told South Korean MPs that Pyongyang had wanted to kill Kim Jong-nam for several years, but that he was being protected by China.