Three suspects are in custody, including a Georgia State University student following an armed robbery at a campus dorm, the university said.

The three men allegedly robbed four students, Andrea Jones, GSU spokeswoman, told The Atlanta Journal-Constitution late Wednesday. The suspects’ names were not released, but investigators believe some of the victims and suspects were acquaintances, Jones said.

Police say the suspects knocked on the door and two of the suspects pointed a hand gun in the students’ face before robbing them of an iPad and cell phones.

The crime happened shortly after 7 p.m. in Building C at University Commons, according to online campus crime alert.

The trio of suspects then left through a stairwell, according to police. No one was hurt.

The first suspect was described as being 5-foot-5, weighing 150 pounds, and was wearing blue jeans and a black jacket with white sleeves, witnesses told police. The second suspect was 5-foot-10, weighed 200 pounds and was wearing all black with a fisherman’s hat.

The third suspect was described as 5-foot-10 and between 230 and 240 pounds, and wearing a white sweat shirt with red writing, grey sweat pants and a black skull cap.

Anyone with information on the case is asked to contact Georgia State University Police at 404-413-2100 or the Police Tip Line at 404-413-3211.

About 2,000 students live in the University Commons complex, located on Piedmont Avenue.