INDIANAPOLIS, Ind. (WOWO): Authorities continue to investigate the weekend death of an Indiana University student. 18-year-old Abigail Bott died in her dorm room.

Authorities determined her death was not a homicide, but police say they still don't know how she died and it could be weeks before they have an answer.

According to IU officials, Bott had a twin sister that also attends the university.  It's unclear whether Bott was alone or with other students before she died.

The teen is the second to die at the Bloomington campus this year.  In late August, 19-year-old Rachael Fiege died after she fell down a flight of stairs at a party.