The Finnish non-government organization Fida International has decided to bring an end to its work in North Korea after over 20 years in the country, the group said Tuesday, blaming increasingly tough U.S. sanctions for making continued operations “impossible.”

The decision will see the NGO bring an end to a €414,000-a-year food security and healthcare project in the DPRK, which was originally set to continue until 2021 and had been funded by the Finnish Ministry of Foreign Affairs since 2001.

Among these projects have been assisting rural communities with potato production, it said, and providing equipment and expertise that has “brought quality health