Seoul: Two tourist agencies that operate tours to North Korea say the US government will soon ban its citizens from travelling to the North.

Koryo Tours says the ban would be announced on July 27 and will go into effect 30 days later. It did not say how long the ban would last.

Another tour operator, Young Pioneer Tours, said in a Twitter message that it has also been informed of the ban, citing the same date.

Young Pionner was the agency that took US student Otto Warmbier to North Korea. He was subsequently arrested there and sentenced to 15 years of hard labour.

North Korea released him in June in a coma and he died days after getting back to the United States.

Reuters