The North Korean famine of the 1990s appears to have had a disproportionate effect on the people of Hamhung. Andrew Natsios, a former aid worker, USAID administrator, and author of "The Great North Korean Famine", described Hamhung as "the city most devastated by famine." Contemporary published reports from "The Washington Post" and Reuters describe numerous fresh graves on the surrounding hillsides and report that many of Hamhung's children were stunted by malnutrition. One survivor claimed that more than 10% of the city's population died, with another 10% fleeing the city in search of food. Despite previously being closed to foreigners, foreign nationals can now travel to Hamhung through the few approved North Korean tour operators.