>> Does North Korea->> We imposed today the heaviest sanctions->>
Ever imposed->> President Donald Trump on Friday unveiled what he called the largest ever package of sanctions on North Korea. Turning up the pressure on Kim Jong-un as his nuclear and missile programs pose a growing threat.
Trump said the treasury department will target more than 50 companies and ships that try to circumvent previous sanctions. By delivering fuel and other essentials. David Brunstrom is covering the story.>> We understand that the United States is giving very active consideration into more robust action at sea to counter North Korean sanction's.
And that could include a beefing up of the US maritime presence. We understand also been some consideration given to employment of the US Coast Guard. And Washington is also talking to countries in the region and hoping that they will contribute.>> The move comes after a wave of missile tests demonstrating North Korea is developing the ability to strike the United States.
The new raft of sanctions comes as North and South Korea take tentative steps to repoen a dialogue against the backdrop of the Winter Olympics in PyeongChang.>> This latest round is unlikely to be an encouragement to the dialogue process. What Washington is doing is making very clear that whatever rapprochement.
Or whatever charm offensive North Korea has been conducting during the Olympics. That's not gonna stop the very tough action it sees as necessary to get North Korea to give up its nuclear weapons program.>> But we'll have to see. If the sanctions don't work, we'll have to go phase two, and phase two may be a very rough thing.
>> Trump has not ruled out going beyond diplomacy, warning of fire and fury if North Korea threatens the US or its allies.