U.S. officials said North Korea could be using tourism money to fund its nuclear weapons program.
The Department of State updated a pretty serious travel warning Wednesday urging American citizens not to travel to North Korea.
The warning says the country funnels money from a variety of sources into its nuclear weapons program. It says it's "entirely possible" the country could be taking tourism money for the same purpose.
U.S. citizens traveling in the East Asian country also face a heightened risk of long-term arrest or detainment.
The State Department said North Korea has "unduly harsh" sentences for actions the U.S. would not consider crimes, like taking unauthorized photos or criticizing the government in any way.
The report also notes at least 14 U.S. citizens have been detained in the country over the past decade.
According to the warning, foreigners have been held for long periods without being formally charged; have been questioned for weeks without counsel; and have been forced to make public statements or take part in public trials.
The State Department urges citizens to consider what "they might be supporting" by traveling to the country.