VIENNA (AP) — Austrian police say they have identified 272 suspects in the country as part of an investigation of internet-based child pornography involving 141 nations.

Chief Inspector Harald Gremel says Austrian police were alerted by Luxembourg authorities after they found child pornography was being watched worldwide from several Luxembourg-based home pages.

Gremel told reporters Wednesday that all the suspects are male and come from all professions, including school and kindergarten teachers. Interior Minister Johanna Mikl-Leitner says they range in age from 17 to 70.

Police did not say whether investigations, which were conducted over months, were continuing outside of Austria.