US Imposes New Sanctions on North Korea The sanctions have been imposed on three top North Korean officials. One of the officials is described as Kim Jong Un's "right hand man." The sanctions have been imposed because of North Korea's continued human rights violations. Robert Palladino, Deputy Spokesperson for the State Department, via 'USA Today' These include the death of American tourist and college student Otto Warmbier. Warmbier was imprisoned for 17 months in North Korea after being arrested for theft. He died 17 days after being returned to the U.S. in a vegetative state. Steven Mnuchin, Treasury Secretary, via 'USA Today'