According to the US reports, the half-brother of Kim Jong-un was killed by a chemical attack in Malaysia abiding by the orders of the North Korean government.
Kim Jong died at Kuala Lumpur’s airport just as he was pounced by two women who smeared his face using VX nerve agent.
The women, who say they believed were carrying out a prank for a TV show, were actually on trial for murder.
Since the US accuses North Korea for having plot the murder, it said it would impose new sanctions on North Korea in response to this incident.
However, North Korea denies any involvement pertaining to the murder.
“This public display of contempt for universal norms against chemical weapons use further demonstrates the reckless nature of North Korea and underscores that we cannot afford to tolerate a North Korean WMD program of any kind,” said State Department spokeswoman Heather Nauert.
Nonetheless, the new sanctions that were came in to force with effect from 5th March are largely symbolic, joining a vast array of disciplinary measures the US has taken against North Korea.
Capitalising on warmer ties after the Pyeongchang Winter Olympics, Mr Kim and South Korean President Moon Jae-in have arranged a landmark meeting for next month.
It would be the first such meeting for more than a decade and the first since Kim Jong-un took power in North Korea in 2011.
US President Donald Trump says the developments, including “North Korea’s suggestion that it might discuss getting rid of its nuclear weapons, are positive” but might be a mere “false hope”.
Earlier, North couldn’t keep up to his promises with regard to halting its nuclear ambitions.
Kim Jong-nam was intensely estranged from his family and was also bypassed for the leadership in favour of his younger half-brother, Kim Jong-un.
He spent most of his time overseas in Macau, mainland China and Singapore.
He poured his heart out in the past against his family’s dynastic control of North Korea, and in a 2012 book was quoted as saying he strongly believed his half-brother lacked leadership qualities.
He expired in February 2017, shortly after Siti Aisyah and Doan Thi Huong waylaid him as he checked in for a flight at Kuala Lumpur airport.