BANGKOK — A report by Harvard researchers due to be released on Friday says there is sufficient evidence to prosecute high-ranking officers in Myanmar’s military for crimes against humanity and war crimes committed against an ethnic minority.

The report, published by the International Human Rights Clinic at Harvard Law School, is based on a three-year study of villages near the Thai border, where the military conducted a large-scale offensive against ethnic Karen fighters from 2005 until 2008. The authors say that “widespread and systematic” attacks directed against civilians during the offensive justify war-crime prosecutions.

“Despite recent reforms, there have been few public discussions about Myanmar’s legacy of violence and oppression,” the report says, adding that “such issues cannot be swept aside during conversations about the country’s future.”

The report specifically names three commanders of the offensive against the Karen, all of whom are still active in the military. They are Maj. Gen. Ko Ko, who is currently Myanmar’s home affairs minister; Lt.. Gen. Khin Zaw Oo, now commander of the Army Bureau of Special Operations; and Brig. Gen. Maung Maung Aye, whose current position is unknown.