DARTMOUTH (CBS) – The University of Massachusetts Dartmouth recently sent out two separate warnings about female students who were allegedly sexually assaulted at a sophomore dorm.

The university’s Department of Public Safety issued the advisories on April 27 and May 6; both of which were the day after each incident reportedly occurred, according to UMass Dartmouth spokesman Joseph Sullivan.

A student reported that a man entered a room through an unlocked door and allegedly assaulted a her in her room between 3 a.m. and 5 a.m. on April 26.

Another student told DPS that an unknown man had assaulted her in the common area on the fourth floor at Pine Dale Hall around 2 a.m. on May 5. That student has “significantly changed” her story and now does not wish to pursue charges.

No additional details were immediately available.

Anyone with information can call the Silent Witness/Police Tip Line at (508) 999-8477. Suspicious activity can be reported to DPS at (508) 999-9191.