VIENNA (Austria) - FEDERAL authorities said on Wednesday they questioned 107 suspects in two major international child pornography investigations.

Austria's Federal Criminal Investigations Bureau said the 'intensive questioning' of the suspects, whose names were not released, was done in conjunction with police in Germany and the United States.

Worldwide, 2,500 suspected child porn customers have been interrogated, Austrian officials said. They did not elaborate.

Investigators said they also seized pornographic materials that included disturbing images of a 12-year-old blond girl and a 10-year-old Asian girl.

They said the top Austrian suspect was a 44-year-old Viennese man whose home computer contained images of him sexually abusing his 10-year-old stepdaughter.

Authorities said they acted on information from US investigators detailing individuals who used online accounts to pay for Web-based child pornography or who profited from the sale of such material. -- AFP