It also described Petrel 8 as flying under the flag of Comoros, while Jie Shun is under Cambodia and Hao Fan 6 under Saint Christopher and Nevis.
Hugh Griffiths, the coordinator of a UN Security Council panel on North Korea sanctions, announced the port bans during a briefing to UN member states on Monday in a session also attended by a North Korean diplomat.
That resolution, which followed North Korea's first successful tests of intercontinental ballistic missiles capable of reaching the United States, also banned the country from exporting coal, iron, lead and seafood products.
Since 2006 Pyongyang has conducted six underground nuclear tests, all in violation of multiple council resolutions.More news: Indicator Spotter: Watching the Numbers on Shares of S&P 500 SPDR (SPY)
Griffiths also asked all countries to pay "special attention" to North Korea's Mansudae Overseas Project Group of Companies, also known as the Mansudae Art Studio, which is on the sanctions blacklist and subject to an asset freeze and travel ban. The ban went into effect on October 5. "These four vessels are prohibited all the ports (...) to have transported goods that are prohibited", he added, refusing to specify.
The new sanctions include restrictions on the sale to North Korea of oil products and crude oil, and the citizens of the DPRK cannot rely on work permits on the territory of member countries.
Griffiths was also reported to have asked United Nations member states to pay special attention to North Korea's Mansudae Overseas Project Group of Companies, also known as the Mansudae Art Studio, which is also blacklisted. The Jie Shun is not listed on the site.
"Sanctions are not the final objective. Just a means. But of course, to be effective, sanctions must be applied by everybody".More news: Hillary Didn't Mention Weinstein Once During 90-Minute Speech
"Sanctions are not a goal in itself", they aim to bring North Korea to a negotiating table to talk about its weapons programmes that are deemed threatening to the world stability, stressed the diplomat at the end of the meeting.
Ambassador Ja Song Nam said The North would continue "along the road of building the socialist power by dint of the spirit of self-reliance and self-development", regardless of the bans.
The latest set of sanctions were in response to Pyongyang's sixth nuclear test - the largest yet - and the firing of two missiles over Japan.
On Saturday, he said that diplomatic efforts have consistently failed and "only one thing will work", in what appeared to be a repetition of previous threats of force.More news: Theresa May concedes ECJ rule during Brexit transition
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