At least six former members of Guatemala's military will go on trial on charges of forced disappearances and crimes against humanity dating to killings in the country's 36-year civil war.

Judge Claudet Dominguez has ordered that proceedings begin against the ex-soldiers in connection with massacres committed during the 1960-1996 conflict.

The killings are related to more than 565 human remains found in mass graves in western Guatemala.

The victims are believed to have been killed by soldiers under the command of the six suspects, who were detained Tuesday.

At least 245,000 people were killed or disappeared during Guatemala's civil war, according to the United Nations.