North Korea’s market exchange rate for foreigners suddenly dropped on Wednesday, according to NK Pro’s Exchange Rate Index, hinting that the country’s borders will remain closed for the foreseeable future.

The U.S. dollar dropped by 12.5% from 8,000 KPW to 7,000 KPW, while the euro dropped 9.3% from 8,600 to 7,800 KPW, an informed source said. This ends a discrepancy that had allowed foreigners to exchange cash at more favorable rates than locals over the last three months.

“We had seven to eight years of currency stability, where the won was around 8,000-8,500 to the dollar. Now, for