The United States said on Friday it was imposing its largest package of sanctions to pressure North Korea to give up its nuclear missile program, and President Donald Trump warned of a "phase two" that could be "very, very unfortunate for the world" if the steps did not work.
In addressing the Trump administration's biggest national security challenge, the U.S. Treasury sanctioned one person, 27 companies and 28 ships, according to a statement on the U.S. Treasury Department's website.
The United States also proposed a list of entities to be blacklisted under separate United Nations sanctions, a move "aimed at shutting down North Korea's illicit maritime smuggling activities to obtain oil and sell coal."