North Korean authorities are continuing to adopt more stringent measures to prevent the Ebola virus from entering DPRK territory, expanding restrictions to also limit parts of the domestic community from foreign travel.

Choson Exchange, a not-for-profit which often provides educational training to North Korean students overseas, reported Monday that its participants had been prevented from leaving North Korean territory, adding to a tourist ban which so far only prevented inbound visitors to the DPRK.

“We know that our group was not allowed to leave and that came as a bit of a surprise, because as late as Friday it was