A woman at the University of Massachusetts Dartmouth has reported a sexual assault that she said happened at an on-campus apartment on December 3.

University police released a warning saying that an unknown male had sexually assaulted the woman around 5 a.m. while she was sleeping over at a friend's room in Cedar Dell West. Cedar Dell West is a group of on-campus townhouses available for upperclassmen.

No further information or description is available at this time. The incident is under investigation by the UMass Dartmouth Department of Public Safety.

"There is no ongoing threat related to this incident," said university spokesman John Hoey via email.

DPS is asking that anyone with information related to this incident visit the Silent Witness/Police Tip Line or call (508) 999-8477. Community members may also report any suspicious activity to DPS at (508) 999-9191.

For more information and prevention tips, visit umassd.edu/sexualviolence.