SEOUL, South Korea -- An American Christian missionary slipped into isolated North Korea on Christmas Day, shouting that he brought God's love and carrying a letter urging leader Kim Jong Il to step down and free all political prisoners, an activist said.
Robert Park, 28, crossed a poorly guarded stretch of the frozen Tumen River that separates North Korea from China, according to a member of the Seoul-based group Pax Koreana, which promotes human rights in the North. The group plans to release footage of the crossing today, he said.
"I am an American citizen. I brought God's love. God loves you and God bless you," Park reportedly said in fluent Korean as he crossed over Friday near the northeastern city of Hoeryong, according to the activist, citing two people who watched Park cross and filmed it. The activist spoke on condition of anonymity because of the sensitivity of the situation.
No information has emerged about what happened next to Park, who is of Korean descent. The communist country's state-run media was silent. The State Department and the U.S. Embassy in Beijing said they were aware of the incident but had no details.
"The U.S. government places the highest priority on the protection and welfare of American citizens," said State Department spokesman Andrew Laine.
The illegal entry could complicate Washington's efforts to coax North Korea back to negotiations aimed at its nuclear disarmament. Park's crossing also comes just months after the country freed two U.S. journalists, who were arrested along the Tumen and sentenced to 12 years of hard labor for trespassing and "hostile acts." They were released to former President Bill Clinton on a visit to the isolated country in August. North Korea and the United States do not have diplomatic relations.
Park, from Tucson, Ariz., carried a letter to North Korean leader Kim Jong Il calling for major changes to his totalitarian regime, according to the activist from Pax Koreana.
"Please open your borders so that we may bring food, provisions, medicine, necessities, and assistance to those who are struggling to survive," said the letter, according to a copy posted on the conservative group's website. "Please close down all concentration camps and release all political prisoners today."
North Korea holds some 154,000 political prisoners in six large camps across the country, according South Korean government estimates. The North has long been regarded as having one of the world's worst human rights records, but it denies the existence of prison camps.
The activist said Park, who he described as not belonging to Pax Koreana, also carried a separate written appeal calling for Kim to immediately step down, noting starvation, torture and deaths in North Korean political prison camps.
North Korea's criminal code punishes illegal entry with up to three years in prison. But that could be the least of the missionary's problems in a country where defectors say dissent is swiftly wiped out and the regime sees all trespassers as potential spies.
Kim wields absolute power in the communist state of 24 million people where he and his late father -- the country's founder Kim Il Sung -- are the object of an intense personality cult.
Other activists said Park had become known over the last year in Seoul human rights circles. They suggested that his passion for helping North Koreans may have blinded him to the consequences of his actions.
Associated Press writers Kelly Olsen in Seoul, Cara Anna in Beijing and Matthew Lee in Washington contributed to this report.