Kim Jong Un

The US has imposed new sanctions on North Korea for using chemical warfare agent VX to assassinate Kim Jong-un's half-brother, the State Department said today. On February 22, the US determined under the Chemical and Biological Weapons Control and Warfare Elimination Act of 1991 (CBW Act) that the Government of North Korea used the chemical warfare agent VX to assassinate Kim Jong Nam, in the Kuala Lumpur airport, State Department Spokesperson Heather Nauert said.