WASHINGTON – A woman in her 20s executed by a firing squad after being caught with a Bible. Five Christian church leaders punished by being run over by a steamroller before a crowd of spectators who “cried, screamed out, or fainted when the skulls made a popping sound as they were crushed.”

These and other “horrifying” violations of human rights and religious freedom in North Korea are reported in a new study by the United States Commission on International Religious Freedom, titled “‘Thank You, Father Kim Il Sung’: Eyewitness Accounts of Severe Violations of Freedom of Thought, Conscience, and Religion in North Korea.”

The report, released yesterday, comes as President Bush is touring Asia, calling for increased political freedom. In remarks prepared for delivery early this morning in Japan, the president called on Red China to extend more freedom to its population of 1.3 billion. In an advance text of the speech, President Bush also extolled Taiwan, which Beijing considers a renegade province, as “a free and democratic Chinese society.” And the president noted North Korean human rights abuses while reassuring the Hermit Kingdom’s people.

“Satellite maps of North Korea show prison camps the size of whole cities,” Mr. Bush said. “We will not forget the people of North Korea.”

Yesterday on Capitol Hill the chairman of the Commission on International Religious Freedom, Michael Cromartie, and two members of Congress who helped establish the commission, Reps. Frank Wolf of Virginia and Chris Smith of New Jersey, called on Mr. Bush to include the specific findings of the North Korean report in his diplomatic discussions with Chinese and South Korean officials this week, and to urge leaders of both Asian nations to take a firmer stand against their communist neighbor.

Mr. Cromartie told The New York Sun after the event that senior administration officials at the National Security Council had been provided with an advance copy of the report so that Mr. Bush could raise particular human rights abuses with his Chinese and South Korean interlocutors.

Mr. Cromartie said yesterday during the study’s unveiling on Capitol Hill that the report was unique in its depth and breadth, and in the quantity of first-hand accounts, since it is notoriously difficult to obtain reliable information from inside North Korea, owing to the country’s complete isolation under the Kim dictatorship.

Among the first-hand reports are eyewitness accounts of Christians’ being executed for the underground practice of their faith.

The study recounts, for example, how in November 1996 in North Korea’s South Pyongan province, a unit of the North Korean army was tasked with widening a highway connecting Pyongyang to a nearby port city. While demolishing a vacant house, soldiers found in the basement, hidden between two bricks, a Bible and a list of 25 names. Among the list were individuals identified as a Christian pastor, two assistant pastors, two elders, and 20 parishioners who were identified by their occupations.

Hunted down at their workplaces by military police, the 25 Christians were rounded up and detained without any formal judicial procedure. Later that month, the parishioners and their clergy were brought to the road construction site, where spectators had been arranged in neat rows to observe the public execution of the pastor, assistant pastors, and elders. According to a report based on an eyewitness account, the five church leaders “were bound hand and foot and made to lie down in front of a steamroller,” accused of subversion and of being Kiddokyo, or Protestant Christian, spies.

The 20 parishioners were detained near their clergy, and watched, along with the assembled audience, as the five Christian leaders were told they could escape death if they denied their faith and pledged to serve only Kim Jong Il and his father, the first dictator of communist Korea, Kim Il Sung. According to the eyewitness, the clergy remained silent.

For their steadfast belief, the Christians were executed. According to the report, “Some of the fellow parishioners assembled to watch the execution cried, screamed out, or fainted when the skulls made a popping sound as they were crushed beneath the steamroller.”

Another account contained in the report says that on a summer day in North Korea in 1997, a young woman was washing clothes in a tributary of the Tumen River when she dropped a small Bible she had hidden amid the laundry. Spotted by a fellow washerwoman, the girl was reported to North Korean authorities on the suspicion that she was engaging in an exercise of thought or religion condemned by the state. The girl, believed to be in her 20s, and her father, estimated to be around 60, were arrested by local national security police and imprisoned for three months.

One morning, they were taken to a public market area, where, after a brief show trial, the father and daughter were condemned as traitors to the North Korean nation and its communist dictator, Kim Jong Il. The father and daughter were then tied to stakes a few meters from where they had been “tried,” and, before an assembly of schoolchildren, were riddled with bullets by seven policemen who fired three shots each into the pair. According to a report drawn from eyewitness accounts, “The force of the rifle shots, fired from fifteen meters away, caused blood and brain matter to be blown out of their heads.”

The study was compiled by the author of “Hidden Gulag: Exposing North Korea’s Prison Camps,” David Hawk, who was assisted by two South Korean researchers, Jae Chunwon and Philo Kim. Together they interviewed 40 re cent North Korean defectors to gain insight into the religious lives of average North Koreans.

From the interviews, according to Mr. Cromartie, the Commission had obtained a “horrifying picture” of the abuses suffered by Christians and other believers in North Korea.

All of the interviewees had fled to South Korea through China, which has become something of a “safety valve” for North Koreans fleeing religious persecution, Mr. Smith told the Sun yesterday. According to the study, China has received a flood of refugees fleeing the Kim dictatorship, and between 50,000 and 100,000 North Korean exiles remain in China, the commission reported.

China, however, considers dissident North Koreans “economic migrants” subject to repatriation, and the study presents a dismal account of those forced to return to North Korea. According to one defector who was grilled by North Korean border guards, the Kim regime fears that “Juche will be toppled by Christianity,” referring to the state ideology, and exercises brutal control over North Koreans who have been exposed to Chinese or South Korean Christian churches.

According to the study, in order to preserve the complete control Kim Jong Il exercises over his subjects’ minds, repatriated North Koreans are harshly interrogated to determine whether they will infect their countrymen with ideas and information obtained abroad, and Christian believers are often slapped with long prison sentences and hard labor, punishments sometimes passed on to their families and descendants.

The documented fear of Christianity is accompanied by an extensive account of the pervasiveness of the Kims’ cult of personality, and the title of the study, “Thank you, Father Kim Il-Sung,” refers to the phrase North Korean parents are required to first teach their children.