Washington canceled the right to obtain a United States US visa exemption for foreigners who have been to North Korea for the past eight years.
It is seen as another blow to the country’s isolated tourism industry.
Under the exemption program, the US allows citizens from 38 countries including South Korea, Japan and France to enter the US for up to 90 days without a visa.
On the other hand, visitors who have visited eight countries including North Korea since March 1, 2011 are no longer eligible for US visa, according to details published Monday on the U.S. Customs and Border Protection website.
They also need to apply for a tourist or business visa.
Seven other countries, mostly in West Asia, are already on the list of visa exceptions.
The move will affect tens of thousands of visitors from across the country who have been enjoying visa exits in the North as tourists or for other purposes in recent years.
US citizens have been banned from North Korea since 2017, a move introduced after a US student detained in Pyongyang was released from a coma and died a few days later.