BANGKOK, Thailand — A report issued yesterday by a human rights group accuses Burma’s military of killing, raping, and torturing ethnic Karen women as part of its battle against the minority group over the past 25 years.

The report by the Karen Women’s Organization cites in often gruesome detail the cases of 959 women and girls in Burma’s eastern Karen state from 1981–2006. Thousands of other cases of abuse involving women are also noted.

Similar allegations, denied by Burma’s ruling junta, have been made in recent years, including a report from a parallel group detailing widespread sexual assaults against women of the Shan ethnic group that sparked an international outcry.

Burma’s Ministry of Defense did not respond to a request for comment on the KWO report.

According to the report, written by exiled members of the group working along the Thailand-Burma border, women have been frequently gang-raped by members of the military and sometimes killed afterward.

In every case, the assailants — both soldiers and officers — escaped punishment.

“Rape has been and continues to be used as a method of torture to intimidate and humiliate the civilian population, particularly in the ethnic states.

Women and children are subjected to forced labor and are displaced from their homes,” the report said.

In one case, the report said a 20-year-old was raped by four men inside a hut on her farm.

“After raping her, they killed her by shooting into her vagina,” the report said. “No action was taken.”

Another woman was raped by soldiers of the 101st Infantry Battalion, who then killed her and cut off her ears to get her earrings, according to the report.

Large numbers of Karen women — some of them pregnant or carrying newborn babies — also have been forced to work as porters and laborers for the Burma army, it said.