Three Hills RCMP say a man is in custody following allegations of sexual assault at the Prairie Bible Institute early Sunday morning.

Dorm room

The suspect came in through this dorm room window, leaving muddy footprints. (Alana Baker/CBC)

Police say a man broke into the student dormitories at the school through a ground-floor window. 

Officers allege he sexually assaulted several students, mostly males, in their dorm rooms before exiting the building and leaving on a bicycle.

Three Hills RCMP and the Red Deer RCMP forensic unit are investigating the incident and say none of the victims were physically injured.

"From what we understand, the suspect proceeded to make contact with several students, touching limbs and asking for sexual favours," the Prairie Bible Institute said in a statement posted to their website on Monday morning. 

Video surveillance at the site captured images of an alleged suspect and police released them Monday morning, asking for help identifying the man.

On Monday afternoon, a man "fitting the description of the suspect" turned himself in at the RCMP detachment in Three Hills.

"In our opinion, the suspect voluntarily turning himself in is the best possible outcome to this event that has been an unsettling start to the new school year," the school said on its website Monday afternoon.

The school says victim services and local counselling professionals were made available to students. Classes begin at the institute on Tuesday.

Three Hills is a town in central Alberta located about 90 km northeast of Calgary.