Washington's ban on US citizens travelling to North Korea came into force today, with the two countries at loggerheads over Pyongyang's weapons ambitions.
The measure was imposed following the death of student Otto Warmbier, 22, in June, a few days after he was sent home in a mysterious coma following more than a year in prison in the North.
He had been convicted of offences against the state for trying to steal a propaganda poster from a Pyongyang hotel and sentenced to 15 years' hard labour, with US President Donald Trump blaming Pyongyang's "brutal regime" for his plight.
On its website the State Department says it took the decision due to "the serious and mounting risk of arrest and long-term detention of US citizens".
Three Americans accused of various crimes against the state are behind bars in the North, which is engaged in a tense standoff with the administration of US President Donald Trump over its banned missile and nuclear weapons programmes.
Earlier this week Pyongyang launched a missile over Japan, in a major escalation, and it has threatened to fire rockets towards the US Pacific territory of Guam. In July it carried out its first two successful tests of an intercontinental-range missile, apparently bringing much of the US mainland into range.
Exemptions to the travel ban are available for journalists, Red Cross representatives, those travelling for humanitarian purposes, or journeys the State Department deems to be in the national interest of the United States.
But NGOs working in the North privately express concerns about how the process will function and the potential impact on their work.
A few remaining US citizens in the country left yesterday, reports said.
Americans represent around 20 percent of the 5,000 or so Western tourists who visit the North each year, with standard one-week trips costing about $2,000 and budget journeys about half that. The vast majority of tourists visiting North Korea are Chinese.
North Korean tourism development officials have said the ban will have no effect on the economy, with one telling AFP in July: "If the US government says Americans cannot come to this country, we don't care a bit."
Other curious foreigners still travel to the North, and an art symposium in Pyongyang this week saw foreign artists, most of them European, working together with North Koreans.
Norwegian artist Marius Engan Johansen and his North Korean counterpart Ri Pak sculpted clay busts of each other on either side of the same stand.
DMZ Academy organiser Morten Traavik told AFP that one of the events' aims was "to show the wider world in this special critical time that communication is possible".
"By working together and by trying to understand each other... It is possible to communicate when both sides have a will and wish to do so," he said.
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