The University of Hawaii at Manoa is warning students to watch out for a man who is photographing women on campus and then posting photos to what officials describe as an adult website.

Honolulu television station KHON reports the photographer is described as a man in his 20s with a medium build and black hair. He is between 5-foot-8 and 5-foot-9.

University officials say women are being photographed while they walk around campus, wait at crosswalks or sit at bus stops.

Officials say the women are fully clothed in the photos but they may not know they are being photographed.

UH spokesman Dan Meisenzahl says officials want the campus to be a place where students feel safe.

Officials say the university is working with Honolulu police on the case.