ROCHESTER, N.Y. — Six people accused of abducting and torturing two University of Rochester students until a SWAT team stormed in have been charged in a 32-count indictment that adds charges of gang and sexual assault.

Monroe County District Attorney Sandra Doorley says the indictment unsealed Wednesday shows the “extreme torture” the two male victims endured during the 40-hour ordeal inside a Rochester house early last month. But she declined to comment on a possible motive, citing the continuing investigation.

The three men and three women named in the indictment were arrested in December and pleaded not guilty to initial kidnapping charges. The grand jury indictment adds varying counts of assault, gang assault, sexual assault and weapons charges.