JONESBORO -- As many as 100 Arkansas State University students have been tattooed by a 19-year-old student whom police say is unlicensed and is alleged to have left at least two students sick and seeking medical care.

University Police Chief Jim Chapman said he did not know whether the tattoo artist charged the students for his work. Chapman said some of the students were tattooed in the young man's dormitory room and, in other instances, he went to the room of the person getting the tattoo.

But police said the student did not have a state license, had not paid required state fees and had no means of properly disposing of blood and blood-borne pathogens, according to the report. Police say he also had failed to take a state-mandated examination in order to tattoo.

Authorities say the student has been tattooing people on campus since the spring.

Chapman declined to identify the tattooist on Tuesday, saying he didn't want to compromise his investigation. He said state law requires a tattooist to be licensed with the state, as well as work for six months under another tattooist who has been licensed for at least three years.

University police seized from the student's dormitory room several bottles of ink, notebooks containing tattoo drawings and other equipment used in tattooing, according to a police report. Chapman described the equipment as professional-grade.