Tour companies in China say they have been instructed to suspend trips into North Korea after the war rhetoric coming out of Pyongyang stoked up war tensions in the region.
Chinese authorities in the northeastern city of Dandong, which borders North Korea, have told at least five tour agencies to halt overland tourism into the country.
"All (tourist) travel to North Korea has been stopped from today, and I've no idea when it will restart," a travel agent told Reuters.
The border remains open to commercial traffic though.
Through her tears, a North Korean woman told me how she had to escape: risk death while running across the border or die of starvation.
Memories of the Korean war are never far away in South Korea, where residents have grown used to living with the constant threat of war.
North Korea said it will withdraw workers from the Kaesong factory park run jointly with South Korea and suspend all operations there.