The U.S. government will extend an existing ban on its citizens visiting North Korea by another year, the State Department said Monday.

The extension, which will go into effect on September 1, renders U.S. passports invalid for travel to the DPRK and is reportedly motivated by Washington’s concerns about “the serious risk of arrest and long-term detention in North Korea.”

“The Secretary has reauthorized the existing Geographic Travel Restriction on the use of a U.S. passport to travel in, through, or to North Korea,” the State Department said in a statement.

“The restriction is effective as of September 1, 2019