MEXICO CITY (AP) — Soldiers killed as many as 15 people after they surrendered in an abandoned warehouse in southern Mexico last summer, according to a scathing National Human Rights Commission report that lays out allegations of threats, torture, fake autopsies and crime-scene manipulation designed to cover up the illegal acts. The commission's report released Tuesday gave the most gruesome version yet of what happened in the June 30 mass killing of 22 alleged gang members, contradicting the army, which said all died in a fierce gun battle after soldiers came under fire in the town of San Pedro Limon. Calling it "one of the most serious human rights violations that can be committed," Commission President Raul Plascencia issued a report challenging all official versions to date and called on prosecutors to investigate the cover up. [...] eight soldiers face disciplinary charges and three are charged with homicide for an incident the army and the Mexico state prosecutor's office initially denied happened. The report said prosecutors either tortured the three women to force them to concur with the army's version of events, or allowed unidentified people to torture the women with beatings, partial asphyxiation, sexual aggression and threats of rape if they said what really happened.