Where did the Chinese tour group come from in the 11.26 North Korea tourist accident?

The news only said that they were Chinese inspection groups and business groups. It is not clear where they came from, but they should have entered North Korea from Dandong.

The following is excerpted from the news:

According to officials from the Consular Department of the embassy, ??members of these two groups came from all over the country. They organized a group in Dandong to go to North Korea and used drivers for tourism and inspection in North Korea. and vehicles were provided by the DPRK. Those who were not injured in the accident are returning home one after another. The embassy has communicated with relevant domestic departments, and relevant domestic departments have also contacted the families of the dead and injured, and they are going to North Korea one after another to handle relevant matters. As usual, the victims will be cremated on the spot. Whether the injured will return home for treatment will depend on the development of their condition. The above work is in good progress.

Regarding compensation, insurance and other matters, specific plans have not yet been discussed